Boosts immunity and supports antioxidant defenses.
Unlikely to prevent one outright. It might shorten it by about a day if you start taking it right when symptoms appear.
No. Your body can only absorb about 400mg at a time. Anything more is just flushed out. Taking 5000mg is just making expensive pee.
Liposomal or buffered C is easier on the stomach. But for most people, plain old ascorbic acid is perfectly fine and much cheaper.
Click through to the studies bar for the evidence base.
See the dosing guide below.
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Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
If your diet is low in fruits and vegetables, a small dose is a good idea. Otherwise, it's most useful when you feel you're getting sick.
Not directly like caffeine. It's involved in energy pathways, but you won't feel a 'boost' unless you were severely deficient, which is rare.
Yes. Doses over 2000mg a day often lead to digestive issues like diarrhea. It’s not toxic, but it can be uncomfortable.
Yes, it's essential for making collagen. But eating it is less effective for your skin than applying it topically as a serum.
Most research uses 1.0g daily. Below 0.5g, you're probably wasting money. Above 2.0g, no extra benefit. The curve plateaus. Safe upper limit ~ 4.0g.
Acts as an antioxidant, protecting cells from damage. Supports immune cell function and collagen synthesis.
Vitamin C is a well-established essential nutrient with clear benefits for immune function and antioxidant protection. High doses are often used to shorten the duration of colds, although the evidence is mixed. It's most effective when taken preventatively or at the very first sign of symptoms. Absorption can be a limiting factor at higher doses.
Citrus fruits, bell peppers, kiwi, strawberries, and leafy greens. Acerola cherries and camu camu are extremely high sources.
Vitamin C (High Dose) interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.