The recommended dietary reference intake for vitamin C is 65 milligrams each day. Exceeding the daily limit can result in side effects including kidney stones, insomnia, headache, cramps, bloating, heartburn, nausea, diarrhea and vomiting, according to the Mayo Clinic.Know More
Vitamin C is a vitamin that should be taken daily, though the amounts and frequency can fluctuate based on a person’s overall health. For example, if a person is ill, they can increase their dosage as well as their frequency in taking the vitamin.
Vitamin C is recommended to take at any time of day, though some advocate breakfast time is the best time in order to give a person an energy boost for the morning.
The Mayo Clinic recommends no less than 65 milligrams and no more than 200 milligrams daily of vitamin C. Vitamin requirements should be achieve through diet, rather than supplements.Learn more about Vitamins & Supplements
The products with the highest amounts of overall vitamins (including vitamin C) are Garden of Life Vitamin Code for Men, Garden of Life Code Perfect Weight and Nature's Way Alive Max Potency Multivitamins, according to Labdoor tests. It should be noted, however, that the amounts actually present in the products were found to be less than claimed by the products themselves.Full Answer >
Collagen C is typically sold in supplement form and is a combination of the protein collagen and vitamin C. According to the Vitamin C Foundation, vitamin C is essential to the manufacture of collagen, and, therefore, both substances are good for the immune system, joints and skin.Full Answer >
Increased intake of vitamin D is recommended in cases of vitamin D deficiency, according to WebMD. Deficiency of vitamin D occurs in people who avoid sunlight and have dark skin or in people who do not consume enough vitamin D, such as those following a strict vegan diet.Full Answer >
The recommended dietary allowance of vitamin B-12 for adults is 2.4 micrograms per day, reports MedlinePlus. Pregnant women should increase their vitamin B-12 intake to 2.6 micrograms per day, and women should increase their intake to 2.8 micrograms per day when breastfeeding, says WebMD.Full Answer >