Some vitamins work better together because the body absorbs them more easily that way. Iron and vitamin C are one of these combinations. Vitamin C helps the body absorb plant-based iron. Iron is found in meat, beans, and green leafy vegetables.
Vitamin C is found in strawberries, potatoes and citrus fruits. Vitamins C and D are commonly found together in multivitamins, along with other supplements such as vitamin B, folate, biotin and iron. Don't take any individual mineral at the same time as a multivitamin supplement or antioxidant vitamin formula, such as one that contains beta-carotene and lycopene. A small study of 60 male patients with coronary artery disease found that a combination of omega-3 and vitamin E had beneficial effects on serum insulin and insulin resistance.
The body absorbs some of its vitamins better with food, so you may want to take them with a meal or snack. If you take a traditional anticoagulant, such as warfarin, only the small amount of vitamin K contained in an MVM can reduce its concentration. That's because vitamin D is a fat-soluble vitamin that is best absorbed with food, while B-12 is a water-soluble vitamin that should be taken on an empty stomach, says Dr. But one rule remains the same: the most important time to take a vitamin pill is a moment you'll remember day after day.
While both of these B vitamins are important, taking too much folic acid or folate can hide the symptoms of a vitamin B12 deficiency. Studies show that taking these two supplements at the same time can reduce the amount of vitamin B-12 you get. These foods are so rich in vitamin A that, even if you don't take a vitamin A supplement, you should only eat them once a week to avoid consuming them too much. All of these supplements can be taken together, either as individual supplements or as part of a multivitamin complex.
According to this study, it would have to be a huge amount, since taking more than 60,000 IU of vitamin D a day for several months could cause toxicity. Vitamin K1, or phylloquinone, is found in dark leafy vegetables, while vitamin K2 (menaquinones) is found in fermented and animal foods. Research indicates that the two fat-soluble vitamins (vitamin D and vitamin K) work synergistically to ensure that bones absorb calcium instead of accumulating in the arteries.