Why does my period get delayed every time I take vitamin C?

Generally, menstrual delay after taking vitamin C may be caused by excessive dosage affecting endocrine function, individual metabolic differences, polycystic ovary syndrome (PCOS), hyperprolactinemia, hypothyroidism, and other factors. If discomfort occurs, it is recommended to seek timely medical evaluation and treatment at a正规 hospital. Detailed explanations are as follows:

1. Excessive dosage affecting endocrine function: Long-term overuse of vitamin C may interfere with the hypothalamic-pituitary-ovarian axis and disrupt estrogen secretion rhythms. Reduce or discontinue the supplement immediately, and consider obtaining vitamin C from natural food sources such as fruits and vegetables instead. Monitor changes in menstrual cycle.

2. Individual metabolic differences: Some individuals have weaker liver metabolism of vitamin C, leading to drug accumulation that indirectly affects hormonal balance. Switch to a low-dose natural vitamin C formulation, with daily intake not exceeding 100 mg, and keep a record of menstrual cycles during supplementation.

3. Polycystic ovary syndrome (PCOS): Patients with PCOS already have underlying endocrine imbalances; vitamin C may exacerbate hormonal disturbances and cause delayed ovulation. Under medical guidance, medications such as drospirenone and ethinyl estradiol tablets, metformin hydrochloride sustained-release tablets, or spironolactone tablets may be used. Additionally, maintaining a healthy weight and regular lifestyle is recommended.

4. Hyperprolactinemia: Vitamin C may slightly affect prolactin secretion, potentially triggering or worsening the condition, thereby suppressing ovulation and causing menstrual delay. Under medical supervision, bromocriptine mesylate tablets, vitamin B6 tablets, or cabergoline tablets may be prescribed. Avoid nipple stimulation.

5. Hypothyroidism: Insufficient thyroid hormone secretion affects overall metabolism, and vitamin C may indirectly interfere with thyroid function, further aggravating menstrual irregularities. Under medical guidance, levothyroxine sodium tablets or thyroid tablets may be taken, with regular follow-up tests for thyroid function.

In daily life, adhere to the recommended dosage instructions when taking vitamin C and avoid blind over-supplementation. Maintain a balanced diet and reduce intake of high-sugar and high-fat foods. Keep a regular sleep schedule and avoid staying up late. If menstruation is delayed by more than 7 days, seek medical attention promptly for hormonal evaluation.