b complex vitamin benefits

For example, in the rat, the LD50 has been reported as 11900 mg kg-1.[10] For a 70 kg human, this means that 833,000 mg of vitamin C would need to be ingested to stand a 50% chance of killing the person. However, vitamin C could not result in death when administered orally as large amounts of the vitamin cause diarrhea and are not absorbed.[11] An extremely large amount of vitamin C would need to be rapidly injected by IV to stand any chance of killing a person.

Robert Cathcart, MD, has used intravenous doses of vitamin C of 250 grams and reports that he has had no problems.[12] The Council for Responsible Nutrition has set an Upper Level UL of 2 grams, based on transient diarrhea. Their publication on vitamin C safety notes that very large doses of vitamin C have been taken daily over the course of many years, and only minor undesirable effects have been attributed with any certainty to the vitamin’s use[...] Clearly, vitamin C has a low order of toxicity.[13] Reports of harmful effects of vitamin C tend to receive great prominence in the worlds media.

As such, these reports tend to generate much debate and more research into Vitamin C. Some of the harmful effects described below have been proven to be unfounded in later studies, while other effects are still undergoing further analysis.

Pharmaceuticals designed to reduce stomach acid such as the proton pump inhibitors , e.g. Omeprazole, among the most widely-selling drugs in the world, have been found to lower the bio availability of vitamin C by two thirds.

[39] Vitamin C is obtained through the diet by the vast majority of the worlds population. The richest natural sources are fruits and vegetables, and of those, the camu camu fruit and the billygoat plum contain the highest concentration of the vitamin.

It is also present in some cuts of meat, especially liver. Vitamin C is the most widely taken nutritional supplement and is available in a variety of forms from tablets and drink mixes to pure ascorbic acid crystals in capsules or as plain powder.

Citrus fruits orange, lemon, grapefruit, lime, tomatoes, and potatoes are mon sources of vitamin C. Other foods that are good sources of vitamin C include papaya, broccoli, brussels sprouts, black currants, strawberries, cauliflower, spinach, cantaloupe, kiwifruit, cranberries and red peppers.

Emblica officinalis often referred to as Indian gooseberry or amla, is one of the richest known sources of vitamin C 720 mg100g of fresh pulp or up to 900 mg100g of pressed juice.– it contains 30 times the amount found in oranges. The amount of vitamin C in foods of plant origin depends on: The following table is approximate and shows the relative abundance in different raw plant sources.

The amount is given in miligrams per 100 grams of fruit or vegetable parison, one teaspoon of pure vitamin C weighs 4,500 miligrams... The overwhelming majority of species of animals and plants synthesise their own vitamin C.

It is therefore not a vitamin for them. Synthesis is achieved through a sequence of 4 enzyme driven steps, which convert glucose to ascorbic acid.

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