Nutrient Deficiency and Testosterone
Nutritional deficiencies can lower testosterone levels by interfering with how the body makes this hormone. Testosterone production starts in the testes with cholesterol, which enters the mitochondria—tiny power plants inside cells. There, cholesterol turns into pregnenolone, a building block that leads to testosterone through enzyme steps. This process needs key nutrients like zinc for enzymes, magnesium for mitochondrial energy, and vitamin D for hormone control; without them, production slows. Low LDL-C ("bad" cholesterol) limits the source material, while low HDL-C ("good" cholesterol) hinders hormone movement, worsening the drop in levels.
Before starting testosterone replacement therapy (TRT), it's wise to check for these deficiencies through blood tests, as correcting them with targeted supplementation might naturally restore your levels without needing external hormones. For instance, optimizing zinc, magnesium, vitamin D, and cholesterol balance could address the root cause. After beginning supplementation, retest your testosterone levels in 3-6 months to monitor improvements.