Beverages containing caffeine can inhibit the absorption of vitamins and minerals and increase their excretion from the body. read more
There is no direct inactivation of vitamins by coffee. I take my vitamins along with decaf coffee every morning. I am not concerned about any interference. It is probably more important to make it easy on yourself to think about taking your vitamins and nutrients, so your compliance stays good. Don't worry about it. Enjoy your coffee, decaffeinated or not and swallow your vitamins and nutrients with it. read more
An orange, for example, provides vitamin C but also beta carotene, calcium and other nutrients. A vitamin C supplement lacks these other micronutrients. 2. They provide dietary fiber, which is important for digestion and can help prevent certain diseases such as cancer, diabetes and heart disease. read more
Caffeine interferes with the body's absorption of iron, which is necessary for red blood cell production. Drinking caffeine at the same time as an iron source can reduce absorption by up to 80%, according to the Nutrition Desk Reference. Any beverage containing caffeine should be separated from iron-containing foods or supplements by at least one hour. B Vitamins. Caffeine has a mild diuretic effect, which increases urination. read more
Coffee can cause an accelerated elimination of nutrients and vitamins as the urine production is stimulated by caffeine and this eliminates vitamins and nutrients faster. There is no direct inactivation of vitamins by coffee. read more
Whole foods are your best sources of vitamins and minerals. They offer three main benefits over supplements: 1. They contain a variety of the micronutrients your body needs. An orange, for example, provides vitamin C but also beta carotene, calcium and other nutrients. A vitamin C supplement lacks these other micronutrients. 2. read more