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.

Related Topics:
On page 565 Glucosamine, N-acetyl (NAG) has a different value as the page 572 NAG. Are they 2 different products?
Where can I find the most up-to-date values?
Some of the herbs listed as cooking herbs in Eat Right 4 Your Type conflict with the herbs used as medicine in ther Protocols.
The Melatonin dose (200mg) in one of the Encyclopedia Protocols seems a bit high.
The lectin lists on pages 348-49 conflict with the diet. Which is right?
For type O's in the Anti-inflammatory protocols, Yucca is listed with one value as a food and another as a medicine.
Lamb is Neutral for Type A Non-secretors in Live Right 4 Your Type -- but in the BTD Encyclopedia, it's an Avoid. Which is correct?
On page 103 of the Encyclopedia, Dr. D'Adamo recommends vitamin B6 (pyridoxine) in a dose of 20-30mg/kg for Type O's. Can you confirm if this is correct?