Do Hair Growth Supplements Work?

Do Hair Growth Supplements Work?

by | Aug 4, 2026 | Nutrition

Might biotin or zinc supplements prevent hair loss in men and women? By the time we’re 50, about half of us, men and women, will experience hair loss. No, it’s not caused by washing your hair too much or, for that matter, brushing it too much either—two of the many...
The Protein Debate: Why Source Matters More Than Amount

The Protein Debate: Why Source Matters More Than Amount

by | Jul 30, 2026 | Nutrition

I discuss a public health case for modernizing the definition of protein quality. In 2019, Dr. David Katz and colleagues, including one of my favorite researchers, David Jenkins, published a “public health case for modernizing the definition of protein quality.” The...
Are Potassium Chloride Salt Substitutes Safe and Effective?

Are Potassium Chloride Salt Substitutes Safe and Effective?

by | Jul 28, 2026 | Nutrition

Healthy kidneys are required for potassium excretion. If you aren’t sure if you’re at risk, ask your doctor about getting your kidney function tested. Based on how we evolved, the optimum dietary potassium intake likely greatly exceeds current and even recommended...
Are Potassium Chloride Salt Substitutes Worth Trying?

Are Potassium Chloride Salt Substitutes Worth Trying?

by | Jul 23, 2026 | Nutrition

Is potassium chloride a win-win by decreasing sodium intake and increasing potassium intake? Of all the terrible things about our diets, high dietary sodium intake—high salt intake—is the leading risk. It’s estimated to be causing millions of deaths every year,...
Do Cranberries and Pumpkin Seeds Help an Enlarged Prostate?

Do Cranberries and Pumpkin Seeds Help an Enlarged Prostate?

by | Jul 16, 2026 | Nutrition

Cranberries and pumpkin seeds are put to the test for benign prostatic hypertrophy. More than 50% of men in their 50s and at least 70% of men over age 60 suffer from benign prostatic hypertrophy, or BPH, otherwise known as enlarged prostate. This can result in...