Men's Daily Formula begins with the basic formulation similar to Gentle Care and additionally contains natural supplements that support prostate health: pumpkin seed extract, saw palmetto and tomato extract. The amino acid taurine is included, which may improve athletic performance in physically active men, especially those who follow a plant-based diet. 2000 IU Vitamin D3 Most multivitamins only contain about 400 IU of vitamin D, but Men's Daily Formula includes 2000 IU, so that men can achieve optimal blood vitamin D levels while minimizing the number of supplements they take. (Gentle Care Formula contains 1000 IU of vitamin D2, the vegan form of vitamin D)