Additive Myths vs Facts

E-numbers are simply a classification system used in Europe to identify approved food additives. Many are completely natural substances. For example, E100 is curcumin (turmeric), E300 is ascorbic acid (vitamin C), E330 is citric acid (found in lemons), and E160a is beta-carotene (found in carrots). The 'E' just means it has been evaluated and approved in Europe.

Multiple double-blind, placebo-controlled studies have found no consistent link between MSG and headaches or other symptoms. The original 1968 letter to the New England Journal of Medicine was anecdotal and has not been replicated under controlled conditions. MSG is the sodium salt of glutamic acid, an amino acid naturally abundant in tomatoes, parmesan cheese, and mushrooms.

The natural/artificial distinction has little bearing on safety. Many natural substances are highly toxic (ricin, arsenic, aflatoxins), while many synthetic additives are identical to their natural counterparts at the molecular level. Synthetic vanillin is chemically identical to the vanillin found in vanilla beans. Safety depends on the substance itself, the dose, and the context of use — not whether it came from a plant or a lab.

The EU and US use fundamentally different risk assessment frameworks. The EU follows the 'precautionary principle,' which restricts substances when there is scientific uncertainty. The US FDA requires stronger evidence of harm before banning. This leads to situations where the same substance has different regulatory statuses despite similar safety data. A ban may reflect regulatory philosophy, not proven danger.

Preservatives are one of the most important food safety innovations in history. Without them, foodborne illness from bacteria like Clostridium botulinum (botulism), Listeria, and Salmonella would be far more common. While a few specific preservatives (like certain nitrosamines formed from nitrates) have raised concerns at very high doses, the vast majority of approved preservatives have strong safety records. The risk from bacterial contamination in unpreserved food is typically much greater.

The relationship between food colors and behavior is complex and often overstated. While some studies (notably the 2007 Southampton study) suggested a possible link between certain color mixtures and hyperactivity in some children, the effect sizes were small and not consistent. The EU requires warning labels on six specific colors as a precaution, but neither the FDA nor EFSA concluded that colors cause ADHD. Some children may be sensitive, but it is not a universal effect.

Aspartame is one of the most thoroughly studied food additives in history. Over 100 studies and regulatory reviews have found it safe at approved intake levels. In 2023, the WHO/IARC classified aspartame as 'possibly carcinogenic' (Group 2B) — the same category as aloe vera and pickled vegetables — but simultaneously confirmed the existing Acceptable Daily Intake (ADI) of 40 mg/kg body weight. A 60 kg person would need to drink 12-36 cans of diet soda daily to exceed this limit.

Organic food standards do restrict many synthetic additives, but organic products can still contain approved additives. In the US, the USDA National Organic Program allows over 40 non-organic substances in organic food, including carrageenan (until recently), lecithin, and various enzymes. In the EU, around 50 additives are permitted in organic food processing. 'Organic' primarily refers to farming practices, not the complete absence of processing aids.