Wallach does not demand you buy his products and does reveal his recommendations fully in his books. His findings are based on his veterinarian research and his application of veterinarian nutritional principles to human nutrition.
Listen to him on local AM radio station to get traffic and weather. On one Veteran’s Day he claimed to be ex Lt. Colonel in Air Force. Checked it out. Total fraud stolen valor.
I find Wallach to be very interesting and his research very enlightening. But he should be more willing to disclose details of his treatments on ‘Coast to Coast’ radio station where he is often a guest.