What are the consequences of taking vitamin C for three consecutive months?

In general, the effects of continuously taking vitamin C for three months depend on the specific circumstances. Appropriate supplementation can bring benefits, while excessive intake may lead to adverse effects, including enhanced immunity, improved skin condition, better iron absorption, gastrointestinal discomfort, and increased risk of kidney stones. The detailed analysis is as follows:

1. Enhanced immunity: Vitamin C promotes the activity of immune cells, helping the body resist pathogen invasion. Taking vitamin C appropriately over a period of three months can reduce the frequency of infections such as colds and improve overall resistance.

2. Improved skin condition: As an antioxidant, vitamin C inhibits melanin production and promotes collagen synthesis. Long-term, moderate supplementation can help brighten skin tone, reduce dullness, and improve issues like dryness and fine lines, resulting in firmer, more radiant skin.

3. Enhanced iron absorption: Vitamin C converts poorly absorbed ferric iron (iron in its trivalent form) into ferrous iron (divalent form), which is more easily absorbed. For individuals with iron deficiency, consistent supplementation over three months can improve iron absorption efficiency and help alleviate symptoms of iron-deficiency anemia such as dizziness and fatigue.

4. Gastrointestinal discomfort: Excessive vitamin C intake can irritate the gastrointestinal mucosa due to its acidity, potentially causing bloating, diarrhea, acid reflux, or stomach pain. These effects are especially pronounced when taken on an empty stomach, and long-term overuse may lead to gastrointestinal dysfunction.

5. Increased risk of kidney stones: Excess vitamin C in the body can be converted into oxalate, which combines with calcium to form calcium oxalate stones. Continuously taking high doses of vitamin C for three months may elevate urinary oxalate levels, increasing the likelihood of developing kidney or urinary tract stones.

Vitamin C supplementation should follow the principle of moderation. It is best obtained primarily from fresh vegetables and fruits. When supplements are necessary, dosage should be carefully controlled to avoid prolonged, excessive, or blind intake. Adjusting intake based on individual dietary habits and health status is most beneficial for overall health.