1 A blood sample will be taken after an overnight fast. 2  A fasting blood sugar level less than 100 mg/dL (5.6 mmol/L) is normal. 3  A fasting blood sugar level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is considered prediabetes. 4  If it's 126 mg/dL (7 mmol/L) or higher on two separate tests, you have diabetes. For this test, you fast overnight, and the fasting blood sugar level is measured. 2  Then you drink a sugary liquid, and blood sugar levels are tested periodically for the next two hours. 3  A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal.
A serving size should be no larger than 4 to 6 ounces, and you shouldn't exceed 12 ounces of protein in your day. Naturally, if you're having protein without saturated fat, such as fish or tofu, you can have more.
Suggested serving size can range from as little as 50mg per day to as much as 500mg (regular serving size) per day, depending on intended effect. In order to maximize effectiveness, it should be taken with food. A serving of a little less than 1/4 tsp should yield about 500mg.