Modern diets don't typically include high nutrient foods such as organ meats, and modern agriculture is producing plant based foods that don't contain nearly the same level of vitamins and minerals our grandparents enjoyed. In short, we often need to supplement but almost all store bought supplements are cheap, imported, synthetic vitamins which the body doesn't as easily recognise. This makes it harder for your body to absorb and use them efficiently. 
Put back the nutrients modern diets leave out with Organic, Grass-fed and Regeneratively Farmed Beef Liver, the most nutrient dense organ meat and a powerful source of vitamins and minerals essential for Energy including iron, copper, Vitamin A (Retinol), Vitamin B3 (Niacin), Vitamin B5 (Pantothenic Acid),  Vitamin B6 (Pyridoxine), Vitamin B7 (Biotin), Vitamin B9 (Folate) and of course Vitamin B12 (your body cannot product energy if you are deficient in these). Not many people like the taste of liver so this encapsulated product enables you to get the benefits without the taste!