Kids are showing both a sensitivity to foods themselves and food additives. The Feingold Diet proposed in the 1970s outlined particular foods to cut from a child's diet like artificial coloring, artificial flavors, added preservatives, Salicylates (a pesticide added to some food plants), and other food additives like sulfites, artificial sweeteners, MSG, and others. This really just points to a diet free of processed foods and rich in organic plant-based foods like fruits, vegetables, nuts, and beans.
Caffeine and processed sugar have also been known to be culprits. Flaxseed oil, on the other hand, has shown signs of correcting some of the negative behaviors associated with ADHD, just by mixing it with some of your kid's favorite foods. This is because omega 3 fatty acids are critical to healthy brain development as shown in this study on ADHD and related neurodevelopmental disorders.
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