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.
In the UK, adults are advised to eat 0.75g of protein for each kilogram they weigh, based on the Reference Nutrient Intake (RNI). So if you weigh 70kg (11 stone), you should eat about 52.5g of protein a day. On average, men should eat 55g and women 45g of protein daily. Thatâs about 2 palm-sized portions of meat, fish, tofu, nuts or pulses. But most people find it very easy to eat a lot more.