India's packaged food market has exploded in the last decade. Walk into any kirana store or supermarket and you will find hundreds of products with ingredient lists that read more like chemistry formulas than food. Among those ingredients are food additives — chemicals added to preserve freshness, enhance flavor, improve color, or extend shelf life.
While many additives are harmless, several commonly used in Indian packaged foods have been flagged by global health authorities for potential health risks. These additives are identified by E numbers — the European coding system that classifies food additives by category. Understanding these codes can help you make smarter choices the next time you pick up a product.
In this guide, we break down 10 food additives widely found in Indian packaged foods, explain their risks based on current scientific evidence, and share what regulatory bodies like FSSAI (Food Safety and Standards Authority of India) and EFSA (European Food Safety Authority) say about each one.
Risk Level Guide
In This Article
1. E621 — Monosodium Glutamate (MSG)
MSG is a flavor enhancer that intensifies the savory "umami" taste in food. It is one of the most widely used additives in Indian packaged foods, found in instant noodles, ready-to-eat soups, chips, and seasoning mixes.
While small amounts are generally tolerated, some individuals experience symptoms known as "Chinese Restaurant Syndrome" — headaches, flushing, sweating, and numbness. Studies have also linked high MSG intake to appetite stimulation and potential overeating, raising obesity concerns.
2. E211 — Sodium Benzoate
Sodium Benzoate is a preservative used to prevent microbial growth in acidic foods and beverages. It is extremely common in soft drinks, packaged sauces, and pickled products sold across India.
The primary concern is that when Sodium Benzoate combines with ascorbic acid (Vitamin C) — often present in the same product — it can form benzene, a known carcinogen. A 2006 FDA survey found benzene levels exceeding safety limits in several soft drinks. Additionally, studies have linked it to hyperactivity in children when combined with artificial colors.
Check if your soft drink contains both Sodium Benzoate (E211) and Ascorbic Acid (Vitamin C / E300). This combination can produce benzene, especially when exposed to heat or light — common conditions during transport and storage in India.
3. E320 — BHA (Butylated Hydroxyanisole)
BHA is a synthetic antioxidant used to prevent fats and oils from going rancid. It is commonly found in cooking oils, chips, instant noodles, and processed snack foods.
The U.S. Department of Health and Human Services' National Toxicology Program has classified BHA as "reasonably anticipated to be a human carcinogen" based on animal studies showing it causes tumors in the forestomach of rats and hamsters. While humans lack a forestomach, the evidence was sufficient enough for the classification. California's Proposition 65 also lists BHA as a known carcinogen. Japan has banned its use in certain food categories.
4. E321 — BHT (Butylated Hydroxytoluene)
BHT, like its sibling BHA, is a synthetic antioxidant that prevents oxidation in fats and oils. It is frequently found in breakfast cereals, snack foods, and packaged baked goods popular in India.
Animal studies have shown that BHT can cause liver and kidney damage at high doses, along with thyroid disruption. Some research has found it promotes tumor growth when combined with other carcinogens, though results are mixed — some studies paradoxically show anti-tumor properties. The inconsistent evidence, combined with the availability of safer natural alternatives, has led several countries to restrict its use. Australia, New Zealand, Japan, and parts of the EU have imposed limits or bans.
BHA (E320) and BHT (E321) are often used together in the same product. If you see both on a label, that product has a double dose of synthetic antioxidants with questionable safety profiles. Look for products that use natural antioxidants like tocopherols (Vitamin E) or rosemary extract instead.
5. E102 — Tartrazine (Yellow 5)
Tartrazine is a synthetic lemon-yellow azo dye used to give foods a vibrant yellow or orange appearance. It is one of the most commonly used food colorings in India, found in sweets, beverages, snacks, and even some medications.
Tartrazine has been extensively studied for its link to hyperactivity in children. The landmark 2007 "Southampton Study" (McCann et al.) found that a mixture of artificial food colors including Tartrazine, combined with sodium benzoate, increased hyperactive behavior in 3-year-old and 8/9-year-old children. It can also trigger allergic reactions — particularly in people sensitive to aspirin — and has been linked to asthma exacerbation, urticaria (hives), and rhinitis.
6. E110 — Sunset Yellow
Sunset Yellow is a synthetic azo dye that produces an orange-yellow color. It is widely used in orange-flavored drinks, confectionery, ice creams, and packaged desserts in India.
Like Tartrazine, Sunset Yellow was implicated in the Southampton Study for contributing to increased hyperactivity in children. It can cause allergic reactions in aspirin-sensitive individuals and has been associated with hives, swelling, and gastric distress. Some animal studies have shown potential links to kidney tumors, though evidence in humans remains inconclusive. It may also contain contaminants like Sudan I (a known carcinogen) if poorly manufactured.
7. E950 — Acesulfame K (Acesulfame Potassium)
Acesulfame K is an artificial sweetener approximately 200 times sweeter than sugar. It is commonly used in "sugar-free" and "diet" products — including soft drinks, chewing gum, tabletop sweeteners, and protein supplements popular in India's growing health-conscious market.
The safety debate around Acesulfame K centers on its breakdown product, acetoacetamide, which showed thyroid-affecting properties in animal studies. However, the doses used in these studies were far higher than typical human consumption. Some researchers have criticized the original safety studies (conducted in the 1970s) for methodological shortcomings and have called for modern re-evaluation. Recent studies have also raised questions about the impact of artificial sweeteners on gut microbiome composition.
8. E951 — Aspartame
Aspartame is one of the world's most widely used artificial sweeteners, found in diet sodas, sugar-free chewing gum, tabletop sweeteners, and thousands of "light" products. In India, it is the sweetener behind many popular "sugar-free" and "diet" product lines.
In July 2023, the WHO's International Agency for Research on Cancer (IARC) classified Aspartame as "possibly carcinogenic to humans" (Group 2B) — the same category as BHA. This was based on limited evidence linking it to hepatocellular carcinoma (liver cancer) in some studies. However, the WHO's Joint Expert Committee on Food Additives (JECFA) simultaneously reaffirmed its existing ADI, stating the evidence was not strong enough to change consumption recommendations. Aspartame breaks down into phenylalanine, aspartic acid, and methanol during digestion, which is dangerous for people with phenylketonuria (PKU).
If you or anyone in your family has Phenylketonuria (PKU), aspartame must be strictly avoided. In India, all products containing aspartame are required by FSSAI to carry a PKU warning — always check labels carefully.
9. E282 — Calcium Propionate
Calcium Propionate is a preservative widely used in bread and bakery products to prevent mold growth and extend shelf life. In India, it is found in virtually every commercially produced sliced bread, pav, and packaged bakery item.
Calcium Propionate is generally considered one of the safer preservatives. Propionic acid occurs naturally in the human body during fatty acid metabolism and in some fermented foods like Swiss cheese. However, a 2002 Australian study by Dengate and Ruben found a correlation between bread preservatives (including Calcium Propionate) and irritability, restlessness, and sleep disturbance in some children. These effects were reversible upon removal. Some individuals report migraines triggered by propionate sensitivity, though this affects a small subset of the population.
10. E319 — TBHQ (Tert-Butylhydroquinone)
TBHQ is a synthetic antioxidant derived from butane, used to extend the shelf life of oils, fats, and oil-containing processed foods. It is extremely common in instant noodles, fast food frying oils, frozen foods, and packaged snacks in India.
High doses of TBHQ (1-4 grams) can cause nausea, vomiting, delirium, and collapse. While such doses are far above what you would encounter in food, animal studies have shown it can cause stomach tumors at prolonged high exposure levels. A 2021 study by the Environmental Working Group (EWG) raised concerns that TBHQ may suppress immune response and reduce the effectiveness of certain vaccines. TBHQ also appears to trigger food allergies by affecting T-cell behavior, according to research presented at the American Society of Pharmacology and Experimental Therapeutics.
Quick Reference: All 10 Additives at a Glance
Here is a summary of all the additives covered in this guide, organized by risk level to help you quickly assess your food labels.
Hazardous — Avoid When Possible
Moderate Risk — Limit Consumption
Limited Risk — Generally Safe
How to Protect Yourself and Your Family
Understanding food additives is the first step. Here are practical strategies to reduce your exposure:
1. Read Labels — Every Time
Indian food labels are required by FSSAI to list all ingredients, including additives, in descending order of quantity. Look for E numbers and the additive names listed in this guide. The closer an additive is to the beginning of the list, the more of it the product contains.
2. Prioritize Whole Foods
The simplest way to avoid harmful additives is to eat more whole, unprocessed foods. Fresh fruits, vegetables, dal, rice, and home-cooked meals will always be safer than their packaged counterparts.
3. Be Skeptical of "Natural" Claims
In India, terms like "natural," "pure," and "wholesome" on food packaging are not strictly regulated by FSSAI the way specific health claims are. A product labeled "natural" can still contain synthetic additives. Always check the ingredient list.
4. Use Technology
Apps like Praan let you scan any packaged food barcode and instantly see the health score, additive breakdown, and risk levels — so you do not need to memorize E numbers or decode ingredient lists manually.
5. Protect Children First
Children are most vulnerable to the effects of food additives due to their lower body weight and developing systems. Pay special attention to snacks, drinks, and sweets marketed to children — these often contain the highest concentrations of artificial colors and flavor enhancers.
Not all food additives are harmful, and not all "chemical-sounding" ingredients are dangerous. The key is to understand which additives have genuine evidence of harm, at what levels they become concerning, and how frequently you are consuming them. Use this guide as a reference every time you shop, or let Praan do the work for you.
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