This is because of the natural hormonal changes that take place in the early morning hours. Finally, the Food and Drug Administration does not regulate supplements in the same way that it regulates prescription medications. Different labs may test different specimens or use different measurements. Try to Find out if you are experiencing a pattern in your glucose levels. Knowing the causes of low blood sugar can help you prevent it. Another meta-analysis in 2018 suggested that vitamin D supplementation may reduce insulin resistance, especially in people who are vitamin D deficient and have well-controlled A1c at baseline. If you're unconscious, call 911 immediately. This is what doctors call atherosclerosis. In these types of situations, be sure to talk to your health care provider about when and how often you should be testing your blood sugar. Be sure to check your blood sugar often when your body goes through changes. This means that you should test your blood sugar frequently and be aware of warning signs of low sugar. Other ways to wind down include spending more time outdoors, joining groups in your community, and connecting with family and friends more. Uncontrolled blood sugar levels can cause dehydration. However, there are important times that you might want to test more often. Diabetes patients need to be vigilant about controlling blood sugar levels and avoiding spikes.