**Vitamin C is an essential nutrient that supports your health in many ways.

**它有助于支持免疫系统功能并防止细菌繁殖，因此这种养分可以有助于预防或解决膀胱感染。但是，使用vitamin C for UTI treatment还没有很好地研究⁠-使用这种营养素用于膀胱感染的临床试验有限，结果好坏参半。

膀胱感染和您的健康

Bladder infections, also known as尿路感染或膀胱炎, can happen to anyone of any age58。According toHarvard Health Publishing, they are most common in older adults, particularly women48。

当膀胱中的尿液池时，会发生尿路感染，为细菌生长提供环境8。这可能会发生variety of reasons，例如男人可能患有肿大的前列腺，阻止尿液或女人的流动可能不足48。

Catheters, kidney stones and sexual activity can all contribute to bladder infections, as well. Most cases are caused by thebacteriaEscherichia coli。

膀胱感染具有一系列症状，包括混乱，小便紧迫感以及排尿时灼热的感觉。

People may also experience bloody or cloudy urine and fevers ⁠— or even pus in urine, which isindicative of an abscess48。感染可能会传播到您的肾脏，此时您的症状会变得更加严重。

通常，用抗生素治疗膀胱感染。但是，根据Dr. Michael O'Leary这是哈佛大学杨树和妇女医院的泌尿科医生，“过度使用抗生素治疗尿路感染是一个问题。”这是因为过度使用抗生素可以鼓励难以治疗的抗生素耐药细菌348。

如果您特别容易出现膀胱感染，则可能需要dietary changesor try alternatives like estrogen replacement therapy, probiotics, vitamin C, blueberries or cranberries, which are all thought to helpprevent or manage urinary tract infections8。

维生素C和膀胱感染

Cranberry Juice & Vitamin C for a UTI

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维生素C，也称为抗坏血酸， 其中一个various essential vitaminsthat you need to consume on a daily basis. This nutrient plays a variety of roles in the body, supporting wound healing and the function of the immune system. Vitamin C is an antioxidant and can also help the body absorb other nutrients.

**According to a July 2017 study in theTranslational Andrology and Urology Journal，维生素C还可以降低尿路感染的风险（UTI）68。

** The nutrient can help resolve bladder infections by changing the level of acidity in your urine.

If your urine is more acidic, bacteria are less likely to be able to inhabit your urinary tract and bladder7。维生素C还被认为有助于阻止细菌繁殖，这意味着它也可以帮助解决持续的UTI。

Using vitamin C for UTI treatment is fairly novel ⁠— according to an April 2016 study in the journalPathogens在仅在两项临床试验中，维生素C已被用作预防性抗生素进行UTI治疗的替代方法。当在三个月内将100毫克的维生素C给孕妇时，UTI的出现减少了一半以上。

However, in a small study of spinal injury patients, who are particularly prone to bladder infections, high doses (500 milligrams) of ascorbic aciddid nothelp prevent or resolve UTIs. It also did not affect urine's acidity levels.

阅读更多:11 Nutrients Americans Aren't Getting Enough Of

Using Vitamin C for UTIs

根据National Institutes of Health, the recommended daily amount for vitamin C is 90 milligrams for adult men and 75 milligrams for adult women2。某些人需要比平均水平更多的维生素C。例如，吸烟者每天需要额外的35毫克。孕妇每天需要85毫克；哺乳期妇女每天需要120毫克。

根据老年专家的说法Suzanne Salamon博士，哈佛医学院的一名讲师，如果您使用这种营养素来防止膀胱感染，则每天应服用500至1,000毫克的维生素C48。

这是您应该获得的建议的每日金额的补充，这意味着您必须消耗约6至13倍的每天获得的金额的六到13倍。您可以通过饮食从补充剂或自然地从补充剂中获得这种数量的维生素C。

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Vitamin C and Your Diet

尿路感染时要吃的食物

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Vitamin C can be found in a各种来源, including plant-based foods and fortified cereals and beverages. This nutrient is particularly rich in citrus fruits, strawberries, cantaloupe, acorn squash and kiwi.You can also find vitamin C in many vegetables including peppers, Brussels sprouts, broccoli and cabbage.

Obtaining large amounts of this nutrient is fairly easy if you’re consuming foods rich in vitamin C. For example, just half a cup of raw red peppers has 95 milligrams of vitamin C. One orange has 70 milligrams; a kiwi has 64 milligrams; half a cup of cooked broccoli has 51 milligrams.

The饮食指南for Americans建议食用2杯水果和2 1/2杯蔬菜，作为标准2,000卡路里饮食的一部分1。If all of your fruits and vegetables come from products rich in vitamin C, you could consume more than 750 milligrams of this nutrient while following the standard diet’s recommendations ⁠— around the amount you’d need to get to use vitamin C for UTI prevention and treatment. **

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健康饮食和维生素C

You should be aware that the饮食指南for Americansrecommends consuming a varied, balanced diet1。**这意味着要掺入富含其他营养但含量较低的维生素C的水果和蔬菜。C，但是这些食物含有大量其他营养素。

If you’re trying to consume a lot of vitamin C without supplements but still want to follow the饮食指南’ recommendations, it might be best to consume some fortified products (like cereals or juices) rather than eating only plant-based products that are rich in vitamin C. Otherwise, you may need to change your consumption of macronutrients so that you’re not ingesting more than the recommended amount ofcalories or carbohydrates。

If you’re trying to maximize your vitamin C consumption so that it all comes from natural sources, you should be aware that this nutrient has a tendency to degrade. The vitamin C content of foods tends to decline when they're exposed to heat or stored for long periods of time.