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What is cholesterol?

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Cholesterol is a waxy, odorless substance made by the liver that is an essential part of cell walls and nerves. Cholesterol plays an important role in body functions such as digestion and hormone production. In addition to being produced by the body, cholesterol comes from animal foods that we eat. Excessive cholesterol in the blood causes an increase in particles called LDL (or ''bad'' cholesterol), which increases the buildup of plaque in the artery walls and leads to atherosclerosis.

From: Glossary of Diabetes Terms WebMD Medical Reference

SOURCES: American Diabetes Association. National Institute of Diabetes and Digestive and Kidney Diseases. xylitol.org. News release, FDA.

Reviewed by Michael Dansinger on February 17, 2019

SOURCES: American Diabetes Association. National Institute of Diabetes and Digestive and Kidney Diseases. xylitol.org. News release, FDA.

Reviewed by Michael Dansinger on February 17, 2019

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What is the dawn phenomenon?

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