Participants were divided into 6 groups based on fasting insulin level and level of glycemic impairment. The researchers identified 5.48 µU/mL as the cut-off point for normal fasting insulin.

Insulin then binds to receptors on cells, signaling them to absorb glucose from the blood and use it for energy. Excess glucose is stored in the liver and muscles as glycogen for later use.

Alternate-day fasting lowered levels of fasting insulin and insulin resistance to a greater degree than calorie restriction among adults with overweight or obesity and insulin resistance ...

Learn the best times to check your blood sugar, what your results mean, and how to use them to manage your health. It varies due to several factors.