Can Vitamin C Cause Diarrhea? Understanding the Side Effects
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4 min read
The Tolerable Upper Intake Level (UL) for vitamin C in adults is 2,000 mg daily. Consuming doses higher than this can lead to uncomfortable digestive side effects, directly answering the question: Can vitamin C cause diarrhea? Yes, but this effect is almost exclusively tied to high-dose supplements, not from consuming whole foods.
