BTE p565 Glucosamine, N-acetyl (NAG) has a different value as the p572 NAG. Are they 2 different products?

No, it's the same product. All the usages listed are valid for N-acetyl Glucosamine, also known as NAG.

Heidi, In the Blood Type Encyclopedia, on page 488 at the bottom of the page on the left, it lists Co Enzyme Q10: 3 mg. Is that correct, or should it be 30 mg?

It should be 30 mg. Many CoQ10 supplements have even higher dosages, due to the low bioavailability of the CoQ10 in those specific preparations. There is a fairly new product called "Q-Gel," which claims to deliver more of the active compound per mg than other formulations do.

On page 103 of the Encyclopedia, Dr. D'Adamo recommends vitamin B6 (pyridoxine) in a dose of 20-30mg/kg for Type O's. For an 80kg man such as myself, that would equal up to 2400mg (2.4g) of vitamin B6 per day. The Merck Manual warns against such a high dosage -- can you confirm if this is correct? Ryan

That is an error: it should read, "2-3 mg/kg." We'll make sure the publisher is made aware of this correction -- thanks, Ryan!

One more for the Encyclopedia Errata - on p. 332 there is a recommendation to take 200 mg. of Melatonin. (YES, 200 mg.!) Take care! -- Judy

200 mg is the high end of dosage range for melatonin. Since the appropriate dose and the timing of it vary so much between individuals, you are squarely in front of your own drawing board if you decide to try it. Each increment starting at .1 mg (1 mcg) all the way up to 200 mg has proved ideal for at least one person. :-) I suspect this entry in the Encyclopedia could reasonably be changed to read "200 mcg," or .2 mg, which is a good starting point if you wish to experiment with this substance. Here’s an informative webpage on melatonin, with a detailed discussion of its functions in humans, and reliable guidelines for using it.

Thanks, everyone!