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Aspartame didn't just arrive at grocery store shelves overnight. It traces its origins back to the mid-1960s, when James M. Schlatter, a chemist working for G.D. Searle & Company, stumbled upon it during research on ulcer medications. Schlatter discovered aspartame by accident after he unintentionally tasted a compound on his finger and noticed its sweetness. This kind of serendipity speaks volumes about how new food additives sometimes enter the public consciousness. The U.S. Food and Drug Administration gave its first green light in the 1970s for use in dry foods, but the journey wasn't smooth. The initial approval sparked controversy and regulatory review, so products containing it stayed off shelves until independent scientists and experts reviewed the safety data multiple times. The final regulatory stamp only came after repeated studies and heated debates. I’ve seen how new food technologies often attract public suspicion, and aspartame is a clear example—its story is as much about public trust and scientific rigor as it is about chemistry.
Sold under familiar brand names like Equal and NutraSweet, aspartame has become a staple for folks looking to cut calories and manage sugar intake. Unlike table sugar, aspartame provides intense sweetness—about 200 times more than sucrose—so only a tiny pinch is needed to sweeten a cup of coffee or a can of diet soda. It pops up not only in soft drinks but also in sugar-free gum, yogurts, and low-calorie desserts. The switch to aspartame over sugar draws both praise for calorie reduction and criticism for its artificial origins. Many health-conscious consumers willingly swap sugar for low-calorie sweeteners like aspartame, looking for a solution to spiraling rates of diabetes and obesity. Others, though, remain suspicious of its safety. My own kids grew up keenly aware of artificial sweeteners in their drinks, and I've seen firsthand how label reading shapes what gets tossed into the shopping cart.
Aspartame is a white, odorless powder and easily dissolves in water, making it a practical ingredient for beverages and processed foods. The molecule itself is a methyl ester of a dipeptide—composed of aspartic acid and phenylalanine, both amino acids found in many protein-rich foods. Both are naturally present in dairy, meats, and vegetables, although the methyl ester end sets aspartame apart. Heat, though, poses a problem. Aspartame doesn't hold up in baking since it loses sweetness at high temperatures, a technical limitation that keeps it out of products like cookies and cakes. It isn't suited for long cooking or high-heat food processing, so most manufacturers turn to other sweeteners for those needs. These physical quirks explain why aspartame crops up more in sodas than in baked goods.
The rulebooks for food additives are thick, and aspartame falls under a web of standards. Every packet, bottle, or food item containing aspartame must clearly call it out on the label. Regulatory bodies in countries including the United States, Canada, the European Union, and Japan set specific maximum usage limits for different food types. The Acceptable Daily Intake has stood at about 40 mg per kilogram of body weight in Europe and 50 mg/kg in the United States. It isn’t just a number game; these values stem from rigorous toxicological reviews and ongoing surveillance. Coming across warnings for people with phenylketonuria (PKU) on products with aspartame is common. PKU is a rare genetic disorder that means someone can’t process phenylalanine. These rules underscore how food safety standards aren’t one-size-fits-all. In my view, the attention to labeling reflects a wider movement for transparency and informed choice, driven by decades of consumer activism.
Industry production of aspartame is all about efficiency and purity. Manufacturers typically build the molecule by combining chemically synthesized aspartic acid and phenylalanine. An important step comes in creating the methyl ester form, which gives aspartame its intense sweetness. Chemical synthesis methods have become more precise over the years, as even trace impurities or deviations from the standard can affect safety and taste. After synthesis, purification takes center stage—producers use chromatography and crystallization methods to ensure the additive meets strict purity requirements. In my work on food ingredients, I've seen up close how even modern technology can't cut corners with food-grade compounds. Factory floors bristle with analytical equipment, and every batch undergoes testing that leaves little room for error—no one wants unpredictable side effects showing up in the food supply.
Aspartame isn't chemically inert. Under certain conditions—especially heat and prolonged exposure to moisture—the molecule begins to break down, losing its characteristic sweetness and forming smaller fragments, including methanol, aspartic acid, and phenylalanine. While each of these breakdown products is present naturally in many foods, the transformation means aspartame's strengths are matched by real-world limits. Some researchers have experimented with chemical tweaks to toughen aspartame against heat and pH swings, giving rise to derivatives such as neotame. These modified sweeteners aim to combine the desirable sweetness punch with better stability in baked and cooked foods. I've spoken to researchers who see chemical modification as a promising path, but also one fraught with its own safety reviews and trials before anything reaches the dinner table.
Most grocery shoppers recognize aspartame under its commercial banners: NutraSweet, Equal, Canderel, or E951 in ingredient lists. Some products in different countries feature unique local names, but the core molecule remains the same. Industry insiders and chemists use technical names like L-aspartyl-L-phenylalanine methyl ester, which sounds complicated enough to put off most laypeople. The swirl of trade names across markets adds confusion for people trying to track what they’re actually eating. Keeping tabs on product synonyms takes effort, especially as multinational food companies tweak formulations and branding to fit changing regulations and shifting consumer trends.
Aspartame passes through some of the toughest regulatory hoops the food industry offers. Agencies—such as the FDA, EFSA, and Health Canada—maintain active oversight, reviewing new evidence and responding to consumer concerns. Manufacturing plants producing aspartame operate under Good Manufacturing Practice rules, with relentless lab tests for impurities and verification that consistency runs from batch to batch. Workers handling the compound receive training in proper hygiene and process controls, to keep contamination in check. As a food writer who’s toured ingredient plants, I can attest that safety culture makes or breaks public confidence. Process safety doesn't take the headline, but it forms the backbone of keeping accidental contaminants or mislabeling events off the nightly news.
Aspartame finds its way into nearly every corner of the food and beverage market where sugar reduction hits marketing goals. Sodas and light drinks claim the largest share, where sweet taste without calories unlocks whole new product lines. Sugar-free chewing gum, ice cream, jelly, fruit preserves, and tabletop sweeteners round out the picture. Diet soft drinks won’t taste the way they do today without aspartame. Many pharmaceutical products also use aspartame to mask the taste of bitter active ingredients in pills or syrups. Hospitals and care homes sometimes rely on it in nutrition support for patients managing calorie intake. These applications only grow as more consumers track sugar and calorie counts, although some food companies now look to stevia or sucralose in markets skeptical of synthetic additives.
Scientific research circles around aspartame like bees around a hive. Chemists and food technologists keep trying to answer two main questions: how can we improve stability, and what are the long-term effects on health? In labs, teams work on novel blends and chemical tweaks to stretch aspartame’s functional reach, especially for cooking or acidic products. Studies on aspartame’s metabolic impact, gut microbiome effects, and potential links to headaches or other symptoms come up year after year. It's rare for a food additive to remain such a hot topic for decades. This reflects both lingering social skepticism and a slow-growing scientific consensus around safety at approved intake levels. I’ve read many academic articles dissecting every reported symptom—from migraines to mood swings—and seen the statistical acrobatics in separating true effects from chance or expectation.
No other sweetener, outside perhaps saccharin, receives as much scrutiny as aspartame. Study after study over four decades works to answer whether consuming it in reasonable amounts poses danger. Scientists have looked for links to cancers, nervous system disorders, and allergic reactions. The vast majority of large-scale, peer-reviewed studies support aspartame’s safety within recommended intake levels, although recent years have seen renewed focus on vulnerable populations and rare conditions like PKU. Some smaller or poorly designed studies contradict these findings, which keeps the debate smoldering in the media and among advocacy groups. The International Agency for Research on Cancer classified aspartame as “possibly carcinogenic to humans” based on limited evidence, only to see many governments reaffirm approval and safety limits. People are quick to distrust food additives, and my own kitchen once saw tense debates about what goes in our family’s food, fuelled by stories online that interpret “limited evidence” as certainty. Trust in food science needs nurturing, especially since the difference between a risk and a proven hazard too often blurs in public discussion.
The future of aspartame seems caught between changing consumer attitudes and scientific advances. As new sweetener options emerge—like natural stevia or monk fruit extracts—some markets grow wary of older artificial additives. Technology also keeps improving how aspartame blends with other sugar substitutes, creating more satisfying flavor profiles and, in some cases, reducing total aspartame use per product. Food companies watch regulatory trends warily, aware that any single alarming study can shift public opinion or spark new guidelines. Researchers devote energy to studying cumulative dietary exposure, possible links to metabolic or gut health issues, and strategies to make artificial sweeteners more like their natural counterparts in taste and function. In my view, transparency and continued willingness to investigate and adapt form the only real answer. If we expect consumers to keep trusting what they eat, there’s no alternative to open conversations and ongoing research. Aspartame’s story brings this lesson home every time the debate reignites.
Aspartame turns up in diet sodas, sugar-free gums, yogurts, and those little blue packets at coffee shops. Many people recognize it as that mysterious sweetener that keeps calories low. Chemically, it’s a mix of two amino acids found in everyday foods like eggs and cheese. Someone looking to cut back on sugar or keep their blood sugar stable often reaches for products with aspartame.
The key reason manufacturers choose aspartame is simple: all it takes is a tiny pinch to do the job. It’s about 200 times sweeter than the sugar in the pantry. I remember swapping out regular soft drinks for aspartame-sweetened ones during college to save on calories and avoid blood sugar swings that come with real sugar. The soda tasted familiar enough but didn’t lead to the same energy crash an hour later.
People get nervous about things they don’t fully understand, and food additives bring out those instincts. Stories about aspartame’s safety swirl around the internet. Some articles name it as a health villain, linking it to headaches or serious diseases. Health agencies like the World Health Organization and the U.S. Food and Drug Administration have spent decades reviewing piles of studies about aspartame. Their conclusion stays the same: it’s safe to eat within the usual daily amounts.
These agencies set strict daily intake guidelines based on thorough evidence. For aspartame, a person weighing 150 pounds would need to drink more than 20 cans of diet soda each day to get close to that upper limit. The science behind aspartame shows that it breaks down into components already found in other foods. Unlike real sugar, it doesn’t spike blood sugar. Because of this, doctors often recommend it to people with diabetes or anyone trying to cut out extra calories.
Aspartame isn’t just in sodas. Look for it in everything from low-calorie yogurts to chewing gum, dessert mixes, popsicles, and even some medicines. Food producers appreciate its clean, sweet taste, which helps keep sugar numbers low without losing flavor. People who watch labels for health or personal reasons need to know aspartame has become a mainstay in processed foods aimed at those wanting fewer calories.
I’ve noticed aspartame helping people enjoy familiar foods even after a diabetes diagnosis or during intense weight loss efforts. For families managing childhood obesity or genetics that run toward diabetes, those options matter. Being able to offer a child a sweet snack without a sugar overload gives parents and caregivers some control in a world full of temptations.
Confusion grows when scientific language clashes with rumors. Clear, honest labeling and easy-to-read ingredient lists help people make smart choices. Doctors, nutritionists, and researchers should keep reaching out to break down the facts for everyone. Sensitivities do exist—for example, people with a rare condition called phenylketonuria must avoid aspartame. Telling that story more widely builds trust.
Looking ahead, food science continues to evolve. People want less sugar, and more are asking questions about what replaces it. Aspartame won’t solve every nutrition problem, but it offers a helping hand for those who need options or have dietary restrictions. Watch for more debate, more research, and hopefully, clearer answers for families weighing what sweet tastes mean for their health.
Aspartame sits on the ingredient lists of thousands of foods and drinks, from diet sodas to sugar-free gum. People who watch their calories or blood sugar often depend on it. I’ve seen friends and relatives keep a few pink or blue packets handy at work or in the restaurant. Sweetness without the guilt—hard not to appreciate that convenience.
Yet, questions about aspartame’s safety never seem to fade. You overhear them at coffee shops or find them on wellness blogs. The food industry claims it’s safe, but many want more than marketing reassurance. Conversations about sweeteners often seem to spill over into every family gathering I attend. Someone always asks if using aspartame day after day could cause harm in the long run.
Aspartame has a long history. Regulators in the US, Europe, and elsewhere have reviewed mountains of research about it. The US FDA first approved it over four decades ago. More than 100 studies back the idea that moderate intake doesn’t cause cancer, brain damage, or other scary problems for most people. Last year, the World Health Organization considered aspartame “possibly carcinogenic,” but the research remains inconsistent and experts say the levels most people consume don’t raise emergencies.
The daily acceptable intake level sits at 40 milligrams per kilogram of body weight in Europe, 50 milligrams in the US. For context, a person weighing 70 kilograms (about 154 pounds) would have to drink 15 to 20 cans of diet soda each day to reach the highest recommended limit. That scenario doesn’t look realistic for most.
Aspartame spells trouble for a small group: people with phenylketonuria (PKU), a rare genetic disorder. Their bodies can’t process phenylalanine, one of aspartame’s breakdown products. Food and beverage labels include warnings for this reason. Most of us—myself included—don’t have that condition, but the reminders still pop up in bold letters, which can increase anxiety for everyone else.
Most adults and older kids can handle the amounts found in drinks and snacks. Young children, pregnant women, and those worried about headaches or gut issues sometimes choose to avoid aspartame, pointing to evidence that remains mixed at best.
Aspartame often gets tied up in bigger conversations about food additives and trust. People see headlines about new studies, then wonder if regulators move fast enough or pay enough attention to potential conflicts of interest. Some choose to play it safe, reaching for natural sweeteners or just switching back to plain sugar, hoping that moderation does less harm.
Habits probably matter more than the occasional can of diet soda. The body can handle small amounts of many ingredients, but piling on one—day after day, year after year—could eventually tip the scales for certain people. Staying informed and listening to your own body gives the best chance at finding a balance.
People want straightforward advice. Keep an eye on reliable health information—look for research from sources like the FDA, WHO, and independent nutrition experts. It helps to check how often you’re reaching for artificially sweetened stuff. Water, tea, coffee, and whole fruits offer other options. As for me, I use aspartame once in a while without losing sleep over it, but I always read labels and pay attention to any new science that comes along. That approach seems to keep both my sweet tooth and worries in check.
Aspartame stirs up a lot of feelings. Some folks look at their soda cans and wonder if a sweetener made in a lab should find a place in daily life. Others rely on it for blood sugar management or cutting calories. The question about safety doesn’t seem to fade, no matter how long aspartame has been on shelves. Plenty of experts, and a fair bit of research, have weighed in, which leaves the rest of us asking: Are there risks tucked behind that sweet taste?
Aspartame has seen the scrutiny of regulatory agencies across the globe. The FDA and the European Food Safety Authority have each given their approval. They landed there after reviewing truckloads of studies on cancer, birth defects, headaches, and even memory. Groups like the World Health Organization still say moderate intake looks safe for most healthy people. Their “acceptable daily intake” ends up well above what someone normally gets from their soda habit or stick of sugar-free gum.
Still, the controversy didn’t come from nowhere. Some early studies in animals flagged possible cancer risks, but researchers struggled to match those results in people. More recent reviews haven’t found solid proof that aspartame brings about tumors or other major diseases when used in regular amounts. The International Agency for Research on Cancer did give aspartame a “possibly carcinogenic” label, putting it on the same list as pickled vegetables or aloe vera. This tag points more to unanswered questions than to actual evidence of harm, which piles more doubt onto the issue but doesn’t draw a clear link.
While long-term dangers grab the headlines, most people run into aspartame in much smaller ways. Some folks get headaches after drinking diet pop, though the research can’t always agree if aspartame is to blame. A rare genetic condition called phenylketonuria (PKU) does turn aspartame into a clear health risk, as it contains phenylalanine. Labels warn anyone with PKU to steer clear. Outside of that condition, effects like dizziness, mood swings, or stomach discomfort surface in stories and online forums, but studies haven’t tied those complaints to the kinds of doses found in food and drinks.
Doubt hangs around because sweeteners wind their way into so many foods, so it’s easy to worry about the unknown. My own family has folks with diabetes, so we lean on low-calorie sweeteners to dodge sugar spikes. I’ve read research papers and seen news stories spark confusion more than comfort. History has taught us that some answers take years to shake out, so public skepticism isn't out of step with common sense. Food safety calls for vigilance.
Common sense holds up here. Variety in diet always beats leaning hard on one group of foods—or sweeteners. If someone feels nervous about aspartame, moving toward water, fruit, or unsweetened beverages rarely sets a person back. Policy makers keep the reviews going and should share updates clearly, free from hype or agenda. Nutritionists can walk people through label reading, making it easier to spot what ingredients work for their personal needs.
People want clear information and real options. By keeping the conversation honest and turning down both fear and hype, we give everyone a better shot at managing their own health, instead of passing along more worry through the grapevine.
Living with diabetes means paying close attention to every ingredient in your meals, especially sugar. Aspartame often shows up as a sugar substitute in diet sodas, low-calorie yogurts, and even sugar-free chewing gum. Many people with diabetes reach for these foods hoping to keep blood sugar steady.
Aspartame comes from two amino acids—phenylalanine and aspartic acid—so it doesn’t work like table sugar. After eating or drinking something sweetened with aspartame, the body breaks it down right away, so it never spikes blood glucose like regular sugar would. This feature made it popular in diabetic diets through the 1980s and 1990s and has kept it on shelves ever since.
I’ve sat in meetings with dietitians and read through ADA (American Diabetes Association) guidance often. They keep aspartame on their list of approved non-nutritive sweeteners for people who watch their carbohydrate intake. The FDA looked at hundreds of studies before giving aspartame the green light for use in food. Over ninety countries worldwide allow it in everything from popsicles to salad dressings.
The debates over aspartame, though, never rest. Some people, doctors, and public health voices point to animal studies linking high doses to rare health problems, like certain types of cancer. The International Agency for Research on Cancer (IARC) classified it as possibly carcinogenic, but in everyday doses, mainstream evidence hasn't linked aspartame to cancer in people. The Joint FAO/WHO Expert Committee on Food Additives considered regular dietary levels safe.
I’ve met more than a few diabetes support group members who worry that diet soda triggers appetite or cravings. Some research hints that artificial sweeteners might change gut microbes or appetite signals. These findings haven’t led to a clinical recommendation against aspartame for people with diabetes. Still, anyone who notices they want more sweets after consuming artificially sweetened snacks should talk to their health care team.
Those living with diabetes deserve more than just bland or unsweetened food options. Being told to swear off familiar favorites sometimes leads to frustration. Aspartame and other non-caloric sweeteners give people a way to enjoy a little sweetness without worrying about rising blood glucose. From my own family’s experience, choosing swaps like aspartame-sweetened yogurt over regular options helped a relative avoid spikes in her morning numbers. Enjoying these foods, within limits, lets people manage diabetes without sacrificing everything they love.
Still, labels matter. Some foods with “diet” on the packaging can give a false sense of safety. Aspartame keeps blood sugar steady, but it can’t make a highly processed diet healthy. Whole fruits, lean proteins, and vegetables still carry the main weight for diabetes management. Processed foods—even sugar-free ones—sometimes contain extra carbs or unhealthy fats, which can work against long-term health.
Eating with diabetes is about picking the right tools for each meal. Aspartame offers one path to lowering sugar intake and controlling blood glucose. The science so far shows it’s safe for people with diabetes when used in moderation. People with a rare disorder called phenylketonuria (PKU) should avoid it, but for everyone else, the focus stays on balanced meals and mindful choices. Checking food labels, talking with health professionals, and listening to your own body bring more clarity than headlines or food fads. For people seeking to manage diabetes well, aspartame can fit into their toolbox—just not as a free pass for unlimited sweets.
Sugar substitutes pop up everywhere these days. In grocery aisle drinks, yogurts, cereal bars—the ingredient list often mentions aspartame. It’s low-calorie, and the name sounds science-heavy, but that doesn’t scare off most folks. On hot days I reach for a diet soda like anyone else. Still, it’s a fair question: Is aspartame something pregnant women and kids should feel safe drinking or eating?
Aspartame gets thumbs-up approval from big names like the US Food and Drug Administration (FDA), the European Food Safety Authority, and the World Health Organization. They set strict guidelines. The FDA’s acceptable daily intake (ADI) for aspartame is 50 milligrams per kilogram of body weight. For a 30-kg child, that adds up to about 1,500 mg in a day—roughly 12 cans of diet soda. So most people never get close to the limit.
Plenty of studies say aspartame doesn’t increase cancer risk. Studies also have not shown links between aspartame and birth defects. It’s safe for pregnant women who don’t have phenylketonuria (PKU), a rare genetic disorder that stops the body from breaking down phenylalanine. PKU gets screened for at birth, so parents know early if this condition affects their family.
Still, it’s important to think about who eats what and why. For growing kids, swapping out water or milk for diet drinks means missing nutrients—like calcium or vitamin D from milk, or hydration benefits from water. Artificial sweeteners keep the sugar count down, but they don’t add anything nutritionally useful for a kid who also needs energy and vitamins to grow.
In my own family and among friends’ kids, sweet drinks often turn into bargaining chips at mealtimes. A sugar-free substitute sometimes makes people feel better about saying yes. But drinking or eating too many sweetened foods, even the low-calorie kinds, changes how kids experience flavors. The more sweet things they eat, the more likely they are to look for sweet flavors in everything, turning their backs on vegetables and proteins. It’s the same for all of us—just ask anyone who cleaned up their diet in January and suddenly craved an apple more than a soda.
During pregnancy, every food choice feels loaded with advice. Pregnant women get told what to eat or avoid at every turn. For aspartame, regulatory bodies—including Australia’s health department in addition to the FDA and EFSA—agree it’s safe within the official limits. Still, eating whole foods like fruit, lean protein, and vegetables covers both taste and nutrients. There’s nothing wrong with the occasional diet soda, but it shouldn’t crowd out foods that help both mom and baby grow strong.
Healthy eating starts with what’s in your shopping basket, not just what’s off-limits. Instead of cutting out aspartame at all costs, it makes more sense to focus on variety. Water, milk, and whole fruit play a big role in a child’s diet. For pregnant women, balanced meals do more for the body than zero-calorie drinks ever could.
It’s easy to get caught up in scare stories or to let food labels make decisions. Aspartame won’t harm most people if they stick to realistic amounts, but it shouldn’t replace real meals or push out better options. As parents and consumers, thinking about what goes in the grocery cart matters more than stressing about every ingredient. That way, we set the table for healthy habits—not just low-calorie foods.
| Names | |
| Preferred IUPAC name | Methyl L-α-aspartyl-L-phenylalaninate |
| Other names |
NutraSweet Equal Canderel E951 |
| Pronunciation | /ˈæsp.ər.teɪm/ |
| Identifiers | |
| CAS Number | 22839-47-0 |
| Beilstein Reference | 3564922 |
| ChEBI | CHEBI:2876 |
| ChEMBL | CHEMBL962 |
| ChemSpider | 3706 |
| DrugBank | DB00141 |
| ECHA InfoCard | 03e4dbc9-2a53-4a7d-897d-20586c9cdada |
| EC Number | E951 |
| Gmelin Reference | 82842 |
| KEGG | C14386 |
| MeSH | D001222 |
| PubChem CID | 134601 |
| RTECS number | CNM80200XX |
| UNII | RN1RQ2AN55 |
| UN number | UN3432 |
| CompTox Dashboard (EPA) | DTXSID7020182 |
| Properties | |
| Chemical formula | C14H18N2O5 |
| Molar mass | 294.30 g/mol |
| Appearance | White, odorless, crystalline powder |
| Odor | Odorless |
| Density | 1.35 g/cm³ |
| Solubility in water | 10 g/L |
| log P | 2.0 |
| Vapor pressure | Vapor pressure: <0.01 mmHg (25°C) |
| Acidity (pKa) | 7.9 |
| Basicity (pKb) | 10.03 |
| Refractive index (nD) | 1.510 |
| Dipole moment | 2.56 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 297.7 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -901.1 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -3854 kJ/mol |
| Pharmacology | |
| ATC code | A01AD12 |
| Hazards | |
| Main hazards | May cause allergic reactions and is a source of phenylalanine (harmful to people with phenylketonuria); may cause eye and skin irritation. |
| GHS labelling | Warning, H317 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | No hazard statements. |
| Precautionary statements | P101 If medical advice is needed, have product container or label at hand. P102 Keep out of reach of children. P103 Read label before use. |
| Autoignition temperature | AUTOIGNITION TEMPERATURE: 470°C |
| Lethal dose or concentration | LD50 (oral, rat): 10,800 mg/kg |
| LD50 (median dose) | 10,000 mg/kg |
| NIOSH | WN6500000 |
| PEL (Permissible) | 50 mg/kg |
| REL (Recommended) | 40 mg/kg bw |
| IDLH (Immediate danger) | Not established |
| Related compounds | |
| Related compounds |
Alitame Neotame Advantame Saccharin Sucralose Acesulfame potassium Cyclamate Diketopiperazine |
