Latest by William Davis, M.D.

Blood Sugar: A Cardiac Risk Factor?

Study after study has established this fact: The higher your blood sugar, the higher your risk for heart disease. The extreme instance of high blood sugars contributing to heart disease can be found, of course, in people with diabetes. But you don’t ...

You Don't Have to be Diabetic to Check Your Blood Sugar

Checking your blood sugar (glucose) has become an easy and relatively inexpensive tool that just about anybody can incorporate into health habits. More often than not, it can provide you with some unexpected insights about your response to diet. You ...

Fats vs. Carbohydrates: Which Are More Important to Reduce Triglycerides?

In our last discussion (What foods increase triglycerides?), we talked about how fats increase triglyceride levels after eating, but carbohydrates increase triglycerides when not eating (i.e., fasting). So should you avoid both fats and carbohydrates...

What to Do If You Forget to Fast for Your Cholesterol Test

You show up at the laboratory for a fasting cholesterol (lipid) panel. Although the doctor’s office advised you to not eat anything after midnight, you forgot. Out of habit, you went ahead and ate breakfast. You didn’t even realize your mistake until ...

What Foods Increase Triglycerides?

What does having high triglycerides mean? Is that bad? And can you do anything about it? High triglycerides, which usually means a value greater than 150 mg/dl after an overnight fast, is among the most misunderstood of common tests. Yet it is among ...

Lipoprotein(a): Unique Treatments for a Unique Risk Factor

In the last blog post, I described the experiences of Patty and Karen, two women in their 40s who had to undergo major procedures for their coronary and carotid disease. The cause: A little talked about risk for coronary and vascular disease called l...

T3: The Forgotten Thyroid Hormone

Millions of people take thyroid medications like Synthroid ®, Levoxyl ®, or levothyroxine. These are all forms of the T4 thyroid hormone, i.e., a thyroid hormone molecule containing 4 iodine molecules. Maintaining normal thyroid hormone levels are im...

Grazing is for cows

Many people “graze” throughout the day, eating many small meals spaced every couple of hours or nibbling continuously throughout the day. They reason that grazing pre-empts the drop in insulin and blood sugar that occurs during longer periods of time ...

How does fish oil reduce triglycerides

Omega-3 fatty acids from fish oil possess the unique ability to reduce triglycerides. There’s no doubt that omega-3s do this quite effectively. After all, the FDA approved prescription fish oil, Lovaza ®, to treat a condition called familial hypertri...

Does fish oil cause bleeding?

Omega-3 fatty acids from fish oil have conclusively been shown to reduce risk for heart attack and stroke. They also have the capacity to “thin the blood.” What this means is that omega-3s slightly block the activation of blood platelets and inhibit ...