Let me define the thing first, because the internet uses “food dye” to mean everything from beet juice to petroleum. Synthetic food dyes are colorings made from petroleum-derived compounds and added to food only for looks. They add no flavor, no nutrition, and do not preserve anything. As of October 2026, the FDA still certifies a handful of them for food. The ones you will actually find on candy wrappers are Red 40, Red 3, Yellow 5, Yellow 6, Blue 1, and Blue 2. Plant-based colors like beet juice, turmeric, and spirulina are a different category and are not what this post is about.

Here is what the research shows. I am going to tell you how strong each piece is, because overstating it and dismissing it both mislead parents.

The strongest evidence is a randomized trial. In 2007, researchers in Southampton, England, studied nearly 300 ordinary children — three-year-olds and eight-to-nine-year-olds, not just kids with attention diagnoses. For a week at a time, the children drank either a plain drink or one containing a mix of synthetic dyes plus a common preservative. Neither the families nor the researchers knew which was which. On the dye weeks, parents and teachers rated the children as more hyperactive. The study was published in The Lancet (McCann et al., 2007). Within a few years, the European Union began requiring a warning label on foods with these dyes.

A state health agency reviewed everything since. In 2021, California’s Office of Environmental Health Hazard Assessment (OEHHA) finished a two-year review of the human trials and the animal research. Its conclusion: synthetic food dyes can cause or worsen behavior problems, including hyperactivity and inattention, in some children. The report also pointed out that the FDA’s safe-intake levels were set decades ago, before anyone was testing for effects on behavior.

The regulators moved. In January 2025, the FDA revoked its approval of Red No. 3 under a long-standing rule that bans any food additive shown to cause cancer in animals. Food makers have until January 2027 to remove it. In April 2025, the FDA and the Department of Health and Human Services announced a plan to get the remaining petroleum-based dyes out of the food supply by the end of 2026. That plan depends mostly on companies choosing to reformulate. So the label still matters more than the headline.

Now the part that matters most. The key word in every one of those findings is “some.” Most children eat a dyed candy and nothing visible happens. Nobody has shown that food dyes cause a diagnosis. When I was seeing patients, I never told a family that dyes were the reason for their child’s behavior, because the evidence does not support saying that about any one child. What I told them was simpler: these additives carry a real, documented risk for some kids, and they offer no benefit to any kid. That math favors removing them where it is easy.

I am going to give you categories instead of a brand list, because brand lists written in September are wrong by November. Manufacturers are reformulating quickly ahead of the 2026 deadline, and the same candy can be dye-free in one package size and dyed in another.

• Usually dye-free: plain milk and dark chocolate bars, chocolate with nuts or caramel, plain caramels, many peanut-butter cups (check the coating), plain toffee.

• Often dyed — read the label: candy-coated chocolates, gummies, fruit chews, sour candy, lollipops, candy corn, anything “blue raspberry.”

• Reformulated candy: because of the 2026 phase-out, the same candy may be dye-free in one bag and dyed in another. The front of the bag will not tell you. The ingredient list on the back is the only thing that counts.

For the candy you hand out, the easiest move is to buy from the first category. For the candy that comes home, use the three bowls.

No, and I would gently ask you not to. In my years of practice, I saw more mealtime trouble come from candy fights than from candy. When a parent takes the bag away, candy stops being food and becomes a prize. Research backs this up. In a well-known study of preschoolers, researchers kept a tasty snack food out of reach for several weeks. When the children finally got access, they wanted it more and ate more of it than children who had never been restricted (Fisher & Birch, 1999).

So the dye conversation lives inside a bigger frame. Your job is to decide what comes into the house and when it is served. Your child’s job is to decide whether and how much to eat from what you offer. Feeding experts call this the Division of Responsibility (Ellyn Satter’s framework), and it is the single most useful idea I ever handed a family. On Halloween, that looks like: the candy that passes the label goes in the rotation, the candy that does not gets used up and replaced, and nobody slips anything into the garbage after bedtime.

If you want the full night-of and week-after plan — how much, when, and how to make candy boring by Thanksgiving — that is its own post, and it comes out October 27.

Here is the part of the candy conversation almost nobody has. Petroleum-based dyes are one kind of food additive. The plastic plates and bowls most kids eat off of every day are another. That is not my framing; it is the American Academy of Pediatrics’. In its 2018 policy statement on food additives, the AAP said that chemicals in food packaging and food-contact materials — bisphenols and phthalates, which can interfere with the body’s hormones — count as food additives too. The same statement recommended that families reduce plastic food contact for children, avoid microwaving food in plastic, and prefer glass or stainless steel.

I want to be careful here. The AAP recommendation is a precaution based on children being more vulnerable to these chemicals than adults, not proof that a plastic plate harms your child. I share it because it comes from the same body of science as the dye concern, and because it is an easy change.

This is why my kids sort their Halloween candy on stainless steel. I should say plainly that I founded Ahimsa, so I am not a neutral party. I designed our plates and bowls because, as a pediatrician, I could not find children’s dishware that met the standard I was giving families in clinic: 304-grade stainless steel, no plastic, no coating. If you are already reading candy labels this October, the plate is the next label to read. Shop Ahimsa dishes at ahimsahome.com.

• Synthetic food dyes are petroleum-derived colorings with no nutritional role; six are common in candy.

• A 2007 randomized trial and a 2021 California health assessment link dye mixtures to increased hyperactivity in some children.

• The FDA revoked Red No. 3 in January 2025 and targets an end-of-2026 phase-out for the rest, but reformulation is voluntary — the label still decides.

• Use the Three-Bowl System (keep, swap, make). Do not throw candy away; restriction makes candy more desirable.

• The AAP’s 2018 policy statement counts food-packaging chemicals as additives too and recommends reducing plastic food contact for kids. Read the wrapper, then read the plate.

Sources

1. McCann D, et al. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial. The Lancet. 2007;370(9598):1560–1567. doi:10.1016/S0140-6736(07)61306-3

2. California Office of Environmental Health Hazard Assessment. Health Effects Assessment: Potential Neurobehavioral Effects of Synthetic Food Dyes in Children. April 2021.

3. U.S. Food and Drug Administration. FDA to Revoke Authorization for the Use of Red No. 3 in Food and Ingested Drugs. January 15, 2025.

4. U.S. Department of Health and Human Services / FDA. HHS, FDA to Phase Out Petroleum-Based Synthetic Dyes in Nation’s Food Supply. April 22, 2025.

5. Trasande L, Shaffer RM, Sathyanarayana S; AAP Council on Environmental Health. Food Additives and Child Health (policy statement). Pediatrics. 2018;142(2):e20181408. doi:10.1542/peds.2018-1408

6. Fisher JO, Birch LL. Restricting access to palatable foods affects children’s behavioral response, food selection, and intake. American Journal of Clinical Nutrition. 1999;69(6):1264–1272. doi:10.1093/ajcn/69.6.1264

7. Satter E. The Division of Responsibility in Feeding. Ellyn Satter Institute.

8. U.S. Food and Drug Administration. Summary of Color Additives for Use in the United States in Foods, Drugs, Cosmetics, and Medical Devices (certified vs. exempt-from-certification colors). fda.gov.

9. European Parliament and Council. Regulation (EC) No 1333/2008 on food additives, Annex V — warning label required for foods containing specified synthetic colours.

About the Author

Dr. Manasa Mantravadi is a board-certified pediatrician, culinary medicine specialist, and founder of Ahimsa — the first pediatrician-designed stainless steel children’s dishware brand. Raising three kids and being a pediatrician has taught her that food is love, food is health, and food is joy.

Medically reviewed by Dr. Manasa Mantravadi, MD, board-certified pediatrician. Last reviewed October 2026.