You can take it for a long time. But not in excess. Be careful about the daily intake dose. Experts believe that the optimal amount of vitamin C per person per day should be 200 to 300 mg, with a minimum of no less than 60 mg, and half a cup (about one hundred milliliters) of fresh orange juice can meet this minimum amount. According to the indicators recommended by the Chinese Nutrition Society, a daily intake of 100mg is sufficient for normal adults. The maximum human tolerance is 1,000mg, more than 1,000mg of the maximum tolerance, too much VC will decompose into oxalic acid. And oxalic acid is one of the triggers of the high incidence of urinary stones, kidney stones, ureteral stones, bladder stones are several times the incidence of normal people. When the human body intake of more than 2000mg, but also cause osmotic diarrhea, easy to cause dehydration.

Vitamin C is water-soluble and is absorbed from the upper part of the small intestine, transported to the bloodstream through the portal vein and the hepatic vein, and transferred to tissues in all parts of the body. When a person ingests vitamin C, the pituitary gland and kidneys have the highest concentration of vitamin C, followed by the eye, brain, liver and spleen. When the total body storage of vitamin C is less than 300 milligrams, there is a risk of scurvy, and the body's maximum storage is 2,000 milligrams.

Expanded:

The main role of vitamin C is to improve immunity, prevent cancer, heart disease and stroke, and protect teeth and gums. In addition, adhering to take vitamin c on time can also make the skin melanin deposition reduced, thus reducing dark spots and freckles, make the skin white. Foods rich in vitamin c include cauliflower, green chili peppers, oranges, grape juice, tomatoes, and so on, and it can be said that in all vegetables and fruits, vitamin c content is quite a lot.

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