It makes sense. I have more energy and can make it through my work day. I do come home and take a short nap to re-energize me for the evening. This is not a hard core diet where you have to measure everything and buy strange foods. It's more what to avoid and what to make sure you eat.
Every blood type is covered.
And oh yes, the foods I listed on the top were on my blood type avoidance list. This is no miracle. Just common sense. I know 2 other folks who have been using the book and are now able to walk without their canes. And they don't look like death warmed over anymore.