Ingredients to Avoid in Kids' Snacks
Reading every snack label is exhausting. This guide focuses on the additives that come up most often in children's food and explains what the research actually says — so you can make faster, more confident decisions at the store.
Artificial Food Dyes
Synthetic dyes like Red 40 (Allura Red, E129) and Red 3 (Erythrosine, E127) are added to snacks purely for color. Red 40 is the most widely used dye in the US and has been linked in some studies to hyperactivity in children sensitive to it. Red 3 was banned from US cosmetics in 1990 due to thyroid tumor findings in animal studies; the FDA revoked its food authorization in 2025. Both are still found in candies, fruit snacks, and cereals. Look for them by name or E-number on the label.
Synthetic Antioxidants: BHA, BHT, and TBHQ
BHA (Butylated Hydroxyanisole, E320), BHT (Butylhydroxytoluene, E321), and TBHQ (Tertiary Butylhydroquinone, E319) are petroleum-derived preservatives used to prevent fats from going rancid. BHA is listed as 'reasonably anticipated to be a human carcinogen' by the US National Toxicology Program. BHT has shown mixed results in animal studies. TBHQ is permitted in the US but banned or restricted in several other countries. All three appear in crackers, chips, cereals, and packaged baked goods.
Sodium Benzoate
Sodium benzoate (E211) is a common preservative in fruit drinks, sauces, and some snacks. When combined with ascorbic acid (vitamin C), it can form benzene, a known carcinogen. The UK Food Standards Agency recommended that manufacturers voluntarily remove it from children's drinks after a 2007 study linked it to increased hyperactivity.
High-Fructose Corn Syrup
High-fructose corn syrup (HFCS) is a sweetener derived from corn starch. It is metabolized differently from regular sugar and has been associated with increased risk of obesity and metabolic issues when consumed in large amounts. It appears in many fruit snacks, granola bars, and flavored yogurts under names like 'corn syrup', 'glucose-fructose syrup', or 'fructose syrup'.
Artificial Flavors
The term 'artificial flavors' on a label can cover hundreds of different chemical compounds. While most are considered safe at typical exposure levels, the lack of transparency makes it difficult for parents to know exactly what their child is eating. If avoiding artificial flavors is a priority, look for products that list specific natural flavor sources instead.
How to Spot These on a Label
Ingredients are listed by weight, so the first few items make up most of the product. Scan the full list for E-numbers in the 100s (dyes), 200s (preservatives), and 300s (antioxidants). BioBrief can scan any label and flag these additives automatically — saving you the manual lookup every time.
Learn More About These Additives
Frequently Asked Questions
- Which food dyes are most common in kids' snacks?
- Red 40 (Allura Red), Yellow 5 (Tartrazine), Yellow 6 (Sunset Yellow), and Blue 1 (Brilliant Blue) are the most frequently used synthetic dyes in children's snacks in the US. They appear in candies, fruit snacks, cereals, and flavored drinks.
- Are BHA and BHT dangerous for children?
- BHA is classified as 'reasonably anticipated to be a human carcinogen' by the US National Toxicology Program based on animal studies. BHT has shown mixed results. Both are permitted in food at low levels, but many parents prefer to avoid them. Check labels for 'BHA', 'BHT', 'E320', or 'E321'.
- What does TBHQ stand for and where is it found?
- TBHQ stands for Tertiary Butylhydroquinone (E319). It is a synthetic antioxidant used to extend shelf life in crackers, chips, and fast food. It is permitted in the US but banned or restricted in Japan, Canada, and the EU at certain levels.
- How can I quickly check a snack for these additives?
- BioBrief lets you scan any product barcode or photograph the ingredients list. It flags additives of concern and explains each one in plain language — no chemistry degree required.