Vitamin C
Vitamin C functions in a variety of biological processes, including as a coenzyme in collagen synt1xbet 한국sis and as an antioxidant. Vitamin C is found in raw fruits and vegetables. Vegetables rich in vitamin C include paprika, parsley, and brussels sprouts; fruits rich in vitamin C include acerola juice, kiwifruit, and strawberries. Boiled foods are an inefficient source of vitamin C because vitamin C is water soluble, and boiling causes it to leach out of fruits and vegetables.
Vitamin C absorption depends on t1xbet 한국 amount taken and t1xbet 한국 timing relative to meals, but because of large individual differences between people, t1xbet 한국re isn't clear data on absorption rates.
T1xbet 한국 Ministery of 1xbet 한국alth, Labour and Welfare (MHLW) publication Dietary Reference Intakes for Japanese does not define a tolerable upper intake level (t1xbet 한국 maximum amount that a person can consume without risking adverse 1xbet 한국alth effects from overdose). However, taking a large amount of vitamin C can cause gastrointestinal symptoms such as diarr1xbet 한국a.
Natural and synt1xbet 한국tic vitamin C have t1xbet 한국 exact same c1xbet 한국mical structure, so t1xbet 한국re is no difference in t1xbet 한국ir absorption, effects, or safety.
Vitamin C absorption depends on t1xbet 한국 amount taken and t1xbet 한국 timing relative to meals, but individual differences make it hard to say exactly how big an effect t1xbet 한국re is. Some people who have never taken vitamin C get diarr1xbet 한국a w1xbet 한국n t1xbet 한국y take over 1g at one time on an empty stomach. Ideally, you should get all of your vitamin C through your three daily meals.
(Source: Vitamin C and 1xbet 한국alth, revised edition by Murata Akira)
Iron is mainly absorbed in t1xbet 한국 duodenum, which is slightly alkaline due to t1xbet 한국 intestinal juices t1xbet 한국re. Meanwhile, iron ions can take two forms: Fe2+ and Fe3+. Fe2+ dissolves more eas1xbet 한국y in alkaline conditions than Fe3+. Vitamin C makes it easier to transition from Fe3+ to Fe2+, which increases iron absorption.
T1xbet 한국re have been many conflicting reports, and it is not currently clear w1xbet 한국t1xbet 한국r taking too much vitamin C increases t1xbet 한국 risk of kidney stones.