Nelson Vergel

Nelson Vergel is a chemical engineer, health author, educator, and longtime patient advocate. Diagnosed with HIV when the disease was widely viewed as a death sentence, he began studying medical research to fight wasting syndrome, which was devastating his community. His work in hormones, nutrition, exercise, and treatment side effects led to the Power Program, used by HIV clinicians to support strength and quality of life.

Since 1987, Nelson has delivered more than 700 health lectures and has served on NIH committees, pharmaceutical research boards, and FDA review panels. He founded two nonprofit health organizations and created ExcelMale, a men’s health education forum.

His books include Testosterone: A Man’s Guide, Beyond Testosterone, How to Read Your Blood Test Result, and Built to Survive. He writes clear, research-based guides on hormones, lab testing, healthy aging, and men’s health.