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Blood Sugar 101: What They Don't Tell You About Diabetes by Jenny Ruhl distills the mass of information stored on the Bloodsugar101.com Web site into a 200 page book and Kindle download.

It draws on the findings of peer reviewed research and the shared Wisdom of the Web to teach you:

1. How normal blood sugar works.
2. What happens as blood sugar control deteriorates.
3. What blood sugar levels cause complications.
4. How you can you prevent complications.
5. How to learn which diet is right for you.
6. What drugs are safe.
7. What supplements work.
8. How to determine if you have a good doctor.
Hypoglycemia (low blood sugar) is a commonly perceived problem. In actuality, while some or many of the symptoms may be present, it is rarely confirmed or documented. The presence of true, documented hypoglycemia in the absence of diabetes treatment must be evaluated comprehensively by an endocrinologist. Hypoglycemia most often affects those at the extremes of age, such as infants and the elderly, but may happen at any age. Generally, hypoglycemia is defined as a serum glucose level (the amount of sugar or glucose in your blood) below 70 mg/dL.

As a medical problem, hypoglycemia is diagnosed by the presence of three key features (known as Whipple's triad). Whipple's triad is:
  1. symptoms consistent with hypoglycemia,
  2. a low plasma glucose concentration, and
  3. relief of symptoms after the plasma glucose level is raised.
Symptoms of hypoglycemia typically appear at levels below 60 mg/dL. Some people may feel symptoms above this level. Levels below 50 mg/dL affect brain function.

The body regulates its glucose level--the primary source of energy for the brain, muscles, and other essential cells - by the actions of different hormones. These hormones include insulin (which lowers the blood sugar level) and other chemicals which raise blood sugar (such as glucagon, growth hormone, and epinephrine).
  • Both insulin and glucagon are manufactured in the pancreas, an organ near the stomach which assists the digestive tract. Special cells in the pancreas, called beta cells, make insulin. Alpha cells in the pancreas make glucagon.
  • The role of insulin is to help in the absorption of glucose from the blood by causing it to be stored in the liver or be transported into other tissues of the body (for metabolism or storage).
  • Glucagon increases the amount of glucose in the blood by breaking down stored glucose (starch, called glycogen) and releasing it from the liver into the bloodstream.
  • Insulin and glucagon are usually correctly balanced if the liver and pancreas are functioning normally.
Traditionally considered a stress hormone, epinephrine (or adrenalin) is made in the adrenal gland and in certain cells in the central nervous system. Epinephrine also elevates blood glucose levels by making glucose available for the body during a time of stress. When this mechanism is not working properly, hypoglycemia can result. Other hormones also help in raising the level of blood glucose, like cortisol made by the adrenal gland and growth hormone made by the pituitary gland.

Other Resources


Blood Glucose (Web MD)

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