Scientifically speaking, yes, Ready Set Food is safe as it gradually introduces babies to one allergen at a time, starting with an ultra-low dose of each and slowly increasing the amounts as indicated by research and clinical studies. The result is that the initial allergen exposure is much gentler than what most parents would feed their babies. In the clinical trials (LEAP, EAT, PETIT), there were zero cases of severe allergic reactions. The babies in the studies were between the ages of 4-11 months and there were, in total, over 2,000 infants who participated.