A micronutrient formulation co-developed^† by Hardy Nutritionals® founder David Hardy, showed “statistically robust improvements” in the first-ever double-blind study to test the effectiveness and safety of a multivitamin-mineral treatment for adult ADHD. Researchers from the University of Canterbury and the University of Otago, New Zealand, randomized 80 adults diagnosed with ADHD to take either the micronutrient formulation or identical-looking placebo pills for 8 weeks. Most of the study participants had at least one psychiatric diagnosis in addition to ADHD. Additional diagnoses included multiple anxiety disorders, major depressive disorder, dysthymia, bipolar disorder, reading disability, and alcohol/substance misuse or dependence. The nutrient group reported more than double the improvement in attention, hyperactivity, and impulsivity symptoms, compared with the placebo group. Clinical psychologists rated more than twice as many people in the nutrient group ‘very much’ or ‘much’ improved in overall symptoms. They also rated moderate and severely depressed participants in the nutrient group as having nearly double the improvement in depression symptoms. Researchers found that the micronutrients were completely safe; there were no differences in side effects between the two groups.

Researchers compared psychiatric medication and micronutrient treatment approaches in 88 children with autism spectrum disorder. The micronutrient group (taking predominately a micronutrient formulation co-developed^† by Hardy Nutritionals® founder David Hardy) improved significantly more than the medication group in key ways, including notably reduced irritability, anger, and intensity of self-injurious behaviors. The micronutrient-treated group also had dramatically lower treatment side-effects.

Scientists compiled safety data from all published and unpublished studies that used a micronutrient formulation co-developed^† by Hardy Nutritionals® founder David Hardy which has been widely researched in the mental health field. Biological safety data from six sources, including 144 children and adults, showed no occurrences of clinically meaningful negative outcomes/effects or abnormal blood tests that could be attributed to toxicity. Adverse event information from six studies involving 157 children and adults included reports of minor, transitory headache and nausea. Only one of the studies permitted a direct comparison between tolerability of the micronutrient treatment and medications: children and adults treated with micronutrients showed significantly fewer adverse events and significantly less weight gain compared with those taking medications.