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how much vitamin c is too much
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Nutrition & Diet
Question #25606
45 days ago
97

how much vitamin c is too much - #25606

Aadhya

I am really worried about my vitamin C intake. Lately, I have been taking these high doses of vitamin C because I read that it's good for immune support, especially with all the colds going around. I mean, who doesn’t want to avoid getting sick, right? 😅 But now I’m wondering, how much vitamin C is too much? I've been taking 2000 mg daily for about a month, thinking it couldn’t hurt. But then I started having this weird stomach upset and some loose stools—totally outta the blue! 🤢 I googled it (I know, not the best idea) and found out that high doses might cause digestive issues. I’ve also read that the body can only absorb so much at once, and excess just gets peed out. Is there a risk of taking too much, like actual damage or something? I don’t wanna mess up my health! Like, how much vitamin C is too much really? Is 2000 mg overboard? Should I scale back a bit before I end up regretting those orange pills? Just feeling a bit lost over here! Any thoughts from you all would be super helpful!

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Doctors' responses

Vitamin C is pretty well-regarded for its role supporting the immune system, but taking more isn’t always better. The tolerable upper intake level (UL) for vitamin C is set at 2000 mg per day for adults, and going beyond this can bring about some unwanted effects. You’re already near the upper limit, so it’s likely that your symptoms like stomach upset and loose stools are related to the high dosage you’ve been taking. These signs are common with excess vitamin C as it can lead to gastrointestinal disturbances. While vitamin C is water-soluble and excess does generally get excreted in your urine, regularly exceeding the upper limit isn’t advisable.

Prolonged use of high doses might lead to more serious issues, such as kidney stones for susceptible individuals, due to increases in oxalate excretion. To prevent such complications and alleviate your current digestive issues, consider reducing your intake to a more moderate dose, generally around 1000 mg or even lower, depending on your dietary vitamin C. Most people get adequate amounts from a varied diet that includes fruits and veggies like oranges, strawberries, bell peppers, and broccoli. Taking mega-doses isn’t necessary for ongoing immune support. If your digestive symptoms do not improve after adjusting your vitamin C intake or if they worsen, seeking medical advice would be sensible to rule out other causes. For now, scaling back should help your system calm down a bit, letting you maintain your health without overloading it.

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