Recommended blood sugar levels can help you know if your blood sugar is in a "normal" range. See the charts in this article for type 1 and type 2 diabetes for adults and children.

A 9.5 mmol/L (226 mg/dL) blood sugar level while fasting is considered high for people with or without diabetes. If you have diabetes, the ADA recommends aiming for the range of 4.4 to 7.2 mmol/L ...

Prediabetes is diagnosed when fasting blood sugar levels are between 100-125 mg/dL (5.6-6.9 mmol/L) while diabetes is diagnosed when fasting blood sugar levels are equal to or greater than 126 mg ...

Symptoms of hyperglycemia (high blood glucose) can include increased thirst, hunger, urination, and fatigue. Some symptoms are more severe or rare.

This simple chart from WebMD shows target blood sugar levels for kids and teens before and after meals, after fasting, before exercise, and at bedtime, as well as an A1c target.

This simple chart from WebMD shows target blood sugar levels for young children with diabetes before and after meals, after fasting, before exercise, and at bedtime, as well as an A1c target.

With one person estimated to develop diabetes every five minutes, it's no surprise there are a host of vitamins, minerals and herbs that claim to improve metabolism and lower blood sugar levels.