Feingold Diet Drug Interactions, Uses, Effectiveness, Safety & More

The Feingold Diet is not an herb or supplement — it is a structured elimination eating plan. It was developed in the 1970s by Dr. Benjamin Feingold, an allergist, who believed that certain food additives and naturally occurring chemicals could trigger hyperactivity and behavior problems in some children.

The diet removes synthetic food dyes, certain artificial flavorings, three preservatives (BHA, BHT, and TBHQ), and the artificial sweetener aspartame. In its early phase it also limits foods that naturally contain salicylates, such as certain fruits (like apples, grapes, and berries) and other plant foods.

People usually follow it as a trial: remove the targeted foods for a few weeks, watch for changes in behavior, then carefully reintroduce foods to see if symptoms return.

The main idea is that some children are sensitive to certain food additives and natural chemicals, and that removing these may reduce hyperactive or impulsive behavior.

The diet targets synthetic dyes (such as those labeled FD&C colors), some artificial flavors, certain preservatives, and natural salicylates. The exact biological reason why these might affect behavior is not well understood and remains debated. Proposed mechanisms — such as effects on the nervous system or immune-like reactions — are largely unproven in humans.

Because the plan works by removing foods rather than adding an active compound, any benefit comes from avoiding a trigger, not from a medicine or nutrient.

The diet itself does not involve taking a drug, so the main concern is nutritional balance. Removing many fruits, vegetables, and processed foods can be hard to maintain and may lead to gaps in vitamins, minerals, or fiber, especially in growing children.

Children with picky eating, food allergies, or existing nutrition problems should be especially careful. Always involve a pediatrician or registered dietitian before starting, and keep the diet as varied and balanced as possible.

For pregnancy and breastfeeding, restrictive elimination diets are generally not advised without medical supervision, because both the parent and baby need consistent, complete nutrition. The diet was designed for children, not for use during pregnancy.

The Feingold Diet does not have direct side effects like a medicine. The main risks come from food restriction.

Possible problems include inadequate intake of certain nutrients, difficulty eating outside the home, social stress for the child, and family frustration. Overly strict versions of the diet may unintentionally limit healthy foods, such as many fruits and vegetables.

If a child loses weight, becomes more tired, or shows signs of poor nutrition, stop and talk with a healthcare provider.

There is no pill or standardized "dose" for the Feingold Diet — it is a pattern of eating. It is typically done in phases: a stricter starting period that removes targeted additives and salicylate-rich foods, followed by gradual reintroduction to identify specific triggers.

Because the diet can be complex and restrictive, it is best to follow program guidance and work with a registered dietitian or pediatrician to make sure your child's overall diet stays balanced. Check with a pharmacist or doctor before relying on any diet to manage behavior or ADHD symptoms.