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Why Avoid Taking Vitamin C at Night?

Many people take Vitamin C supplements to boost their immune system and overall health. However, there is a common recommendation to avoid taking Vitamin C at night. But why is that?

Interference with Sleep

Vitamin C is a powerful antioxidant that can increase energy levels and alertness. Taking it at night may interfere with your ability to fall asleep or stay asleep. This can lead to disrupted sleep patterns and overall poor sleep quality.

Increased Urination

Another reason to avoid taking Vitamin C at night is its diuretic effect. Vitamin C can increase the production of urine, which may result in more frequent trips to the bathroom during the night. This can disrupt your sleep and leave you feeling tired the next day.

Optimal Absorption

It is also believed that Vitamin C is best absorbed when taken with food. Taking it at night when you are less likely to eat a meal may reduce its absorption rate. To ensure that your body can fully utilize the Vitamin C you are taking, it is recommended to take it with a meal earlier in the day.


While Vitamin C is an essential nutrient for overall health, it is best to avoid taking it at night to prevent interference with sleep, increased urination, and suboptimal absorption. To maximize the benefits of Vitamin C, consider taking it earlier in the day with a meal.

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