Several physiological and behavioral factors make children more susceptible to the effects of food additives than adults:
The most significant research on food additives and children's behavior is the 2007 Southampton study, published in The Lancet. This randomized, double-blind, placebo-controlled trial involved 300 children aged 3 and 8-9 years from the general population (not just children with ADHD). The study found that consuming drinks containing six artificial food colors and sodium benzoate (E211) increased hyperactive behavior in both age groups.
The six colors — known as the "Southampton Six" — are:
| Color | E-Number | US Name | ADI (mg/kg bw/day) | Common Food Sources |
|---|---|---|---|---|
| Tartrazine | E102 | Yellow 5 | 0–7.5 | Cereals, candies, sodas, snacks |
| Quinoline Yellow | E104 | Not approved in US | 0–0.5 | Smoked fish, candies (EU) |
| Sunset Yellow | E110 | Yellow 6 | 0–3.75 | Cereals, sauces, snacks |
| Carmoisine | E122 | Not approved in US | 0–4 | Jams, candies (EU) |
| Ponceau 4R | E124 | Not approved in US | 0–0.7 | Desserts, candies (EU) |
| Allura Red | E129 | Red 40 | 0–7 | Cereals, candies, beverages |
Following the study, the EU required warning labels on products containing these colors: "May have an adverse effect on activity and attention in children." This requirement led most European food manufacturers to reformulate with natural alternatives. The FDA reviewed the study but declined to require warning labels in the US, though the European action has influenced some US manufacturers to voluntarily remove artificial colors from children's products.
A 2012 meta-analysis by Nigg et al. reviewed 24 studies and concluded that artificial food colors are associated with increased hyperactivity in children, with an effect size of approximately 0.28 standard deviations — modest but statistically significant. While not all children are affected, the evidence supports a meaningful subset of children who are sensitive to these additives.
Artificial colors are the most studied additives in relation to children's behavior. Beyond the Southampton Six, other colors of concern include Brilliant Blue (E133, Blue 1), Indigotine (E132, Blue 2), and Erythrosine (E127, Red 3). These colors are commonly found in children's cereals, fruit snacks, candies, beverages, and even some medications. The FDA proposed banning Red 3 (E127) in 2025 due to thyroid cancer concerns in animal studies.
Sodium benzoate is a preservative used in soft drinks, fruit juices, and condiments. In addition to its role in the Southampton study, sodium benzoate can form benzene (a carcinogen) when combined with ascorbic acid (vitamin C). The ADI is 0–5 mg/kg bw/day. Children who regularly consume soft drinks containing sodium benzoate may approach this limit.
Sodium nitrite is used in cured meats like hot dogs, bologna, and bacon — foods commonly eaten by children. The IARC classifies processed meat as "carcinogenic to humans" (Group 1), and nitrites are a key factor. The ADI is extremely low at 0–0.07 mg/kg bw/day. A single hot dog can contain enough nitrite to approach a child's daily ADI. Parents should limit children's intake of processed and cured meats.
Aspartame is an artificial sweetener found in diet sodas, sugar-free gum, and "light" foods. In 2023, the IARC classified aspartame as "possibly carcinogenic to humans" (Group 2B). The ADI is 0–40 mg/kg bw/day. While children rarely exceed this ADI through normal consumption, the IARC classification has prompted calls for greater caution, particularly for children who consume diet beverages regularly.
These synthetic antioxidants are used in cereals, snack foods, and chewing gum. BHA is classified by IARC as "possibly carcinogenic to humans" (Group 2B). Both have low ADIs (BHA: 0–0.5, BHT: 0–0.3 mg/kg bw/day). Children who eat multiple servings of cereal or snacks containing these preservatives may approach their daily limits.
Propylparaben is an endocrine-disrupting preservative with estrogenic activity. It has been removed from the EU food additive list but remains permitted in the US (GRAS). Endocrine disruptors are particularly concerning for children whose hormonal systems are developing. Propylparaben is found in some baked goods and tortillas.
Understanding how easily children can exceed ADI values is critical for parents. Here are real-world calculations for common scenarios:
| Scenario | Child Weight | Additive | ADI (mg/kg/day) | Child's Daily Limit | Estimated Intake | % of ADI |
|---|---|---|---|---|---|---|
| 1 hot dog (60g) | 20 kg | Sodium nitrite (E250) | 0–0.07 | 1.4 mg | ~0.6–1.2 mg | 43–86% |
| 1 serving colored cereal (30g) | 20 kg | Red 40 (E129) | 0–7 | 140 mg | ~10–15 mg | 7–11% |
| 1 can soda (355ml) | 30 kg | Sodium benzoate (E211) | 0–5 | 150 mg | ~40–60 mg | 27–40% |
| 1 diet soda (355ml) | 30 kg | Aspartame (E951) | 0–40 | 1200 mg | ~180 mg | 15% |
| 1 serving cereal (30g) | 20 kg | BHA (E320) | 0–0.5 | 10 mg | ~0.3–0.5 mg | 3–5% |
| Dried fruit snack (40g) | 20 kg | Sulfites (E220–228) | 0–0.7 | 14 mg | ~8–16 mg | 57–114% |
The hot dog and dried fruit scenarios are particularly concerning — a single serving can approach or exceed a child's daily ADI. This highlights the importance of limiting processed foods in children's diets.
Certain categories of foods marketed to children are most likely to contain the additives of greatest concern:
The single most effective strategy for protecting children from concerning additives is to build their diet around whole, unprocessed foods: fresh fruits and vegetables, whole grains, lean proteins, and dairy products without added colors or flavors. These foods contain no artificial additives and provide the nutrients children need for healthy development.
When purchasing packaged foods, always read the ingredient list. Watch for E-numbers (EU) or common additive names (US). Use our Food Additive Safety Checker to look up any unfamiliar ingredient. Key additives to avoid for children include E102, E104, E110, E122, E124, E129, E211, E250, E320, E321, and E951.
Many products now offer natural alternatives to artificial additives. Choose products colored with turmeric (E100), beetroot red (E162), paprika extract (E160c), or annatto (E160b). For preservatives, look for products using rosemary extract (E392), ascorbic acid (E300), or tocopherols (E306).
Preparing meals at home gives you complete control over ingredients. Homemade versions of typically processed foods — macaroni and cheese, chicken nuggets, fruit snacks, granola bars — can be made without artificial additives and are often more nutritious.
Reduce children's intake of hot dogs, bologna, bacon, and other cured meats. When you do serve them, choose "uncured" versions that use celery powder (though this also contains natural nitrates). The American Institute for Cancer Research recommends avoiding processed meats entirely for cancer prevention.
Many children's medications, including pain relievers and antibiotics, contain artificial colors and flavors. While the therapeutic benefit usually outweighs the additive risk, ask your pharmacist about dye-free options if your child is sensitive to artificial colors.
As children grow, teach them to read food labels and understand what they're eating. Involve them in grocery shopping and meal preparation. Children who understand food labels make better choices independently.
If you suspect your child is sensitive to food additives, consider an elimination diet under the guidance of a pediatrician or registered dietitian. The Feingold Diet, developed by Dr. Benjamin Feingold in the 1970s, eliminates artificial colors, artificial flavors, and certain preservatives. While controversial when first proposed, the Feingold approach has been partially validated by the Southampton study and subsequent research.
A simplified elimination approach involves:
Use our Food Additive Safety Checker throughout this process to identify additives in the foods your child consumes.
Current regulatory frameworks provide some protections for children, but they are not comprehensive:
However, no country has a comprehensive system specifically designed to protect children from all concerning food additives. Parents must take primary responsibility for managing their children's additive exposure.
Medical Disclaimer: The information provided on this page is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider or pharmacist before making any decisions about medications, supplements, or treatments. Never disregard professional medical advice because of something you read here.