Also known as glucose, blood sugar is a critical source of energy for your body, according to the Mayo Clinic. When it’s either too high or too low, you can feel pretty terrible—especially if ...

DEAR MAYO CLINIC ... sugar) and is found in extremely low levels in various fruits such as melon, pears, grapes and in fermented foods, including dairy cheese and soy sauce. Our red blood cells ...

Experts at the Mayo Clinic say that high blood sugar levels can injure nerves throughout your body. For most diabetics, this will damage nerves in your feet and legs. There are three main ...

A fasting blood sugar of 70 mg/dL or lower usually indicates low blood sugar, the Mayo Clinic says. You may be thinking that hyperglycemia can happen just from eating a super-sugary food ...