Ray only suggests 5 mg a day. Never above that. @Jon444See the linked post above -- if you stay under 5-15mg DHEA/day depending on your age, you won't get any noteworthy G6PDH inhibition. Eat lots of natural sugars, close to 0 polyunsaturated fats, and get no shortage of any vitamins and minerals. If you're still afraid of using DHEA, test your levels or stick with pregnenolone. This place has changed.