My daughter has a chromo disorder, apraxia and epilepsy with some features similar to ASD. We have been looking at nutritional approaches to improve symptoms including low glycemic index, omega-3's etc and vitamin/mineral supplements. Our physicians have stated there is not solid research evidence through sound clinical trials to support nutritional therapy and parental anecdotes are not enough, not all bodies are equal in amts/types needed. The book explains this situation pretty accurately. Docs/dieticians so far are okay with us giving supplements at RDA preventive levels as this will not hurt, but beyond that there is not much support. This book helps in that it puts together in one place all the vitamin, mineral, omega, etc information out there on RDA amounts and upper tolerable amounts for parents to use as a guide pending clinical trials (which the author points out as being difficult and costly to achieve, and may be years out yet). I haven't evaluated the recipes much as more in need of the supplement information, but glad to have them as a start.