Male 57, with heavy diet 8 hr fasting sugar=117; with low carb light meal 4 hr fasting i got 70 mg/dl also felt dizzy. is this impaired. do i need med?

Just diet right: Simple sugars and processed carbs should be avoided or limited. This includes any flour product.. The fine grind makes absorption quick, and spikes your blood sugar which increases Insulin and promotes weight gain. Good fats such as olive oil and coconut oil are fine in sensible amounts. Eat a rainbow of organic vegetables and 3-4 oz protein with each meal. Eat meals 5 hours apart.

4h, not fasting: Fasting sugar is after 8-10 h fast. Fasting sugar 117 is too high (n<100), but not diabetic. Often associated with overweight or obesity. Talk to md re: approaches. Dietician may be very helpful for you.