Here we explain the critical role of Vitamin B5 (pantothenic acid) in cellular metabolism and cancer prevention. Vitamin B5 is essential for forming Coenzyme A (CoA), which is required for Acetyl CoA production — the key molecule that feeds the citric acid (Krebs) cycle and mitochondrial energy production. Deficiency in B5 impairs normal oxidative metabolism, diverting pyruvate toward the lactic acid fermentation pathway that promotes cancer (continuing the Warburg effect theme from prior episodes).

Three Most Important Points

1. Vitamin B5 Forms CoA: Pantothenic acid is the precursor to Coenzyme A, vital for turning pyruvate into Acetyl CoA.

2. Supports Healthy Respiration: Adequate B5 keeps the mitochondrial energy pathway open, preventing the metabolic shift that favors cancer.

3. Cancer Prevention Link: Like other B vitamins in the series, B5 helps maintain normal cellular respiration and blocks the conditions that allow cancer metabolism to dominate.