饮食可乐会导致液体保留吗？

Diet Coke is an easy way to get your sweetness fix without overloading on sugar, but does that mean it's healthy? Maybe you're feeling bloated lately or you have gained weight instead of lost it. If you've heard bad things about artificial sweeteners, you might wonder if your diet soda is to blame.

The梅奥诊所notes that medical term for puffiness — specifically in hands, arms, feet, legs and ankles — is edema, a condition characterized by retention of excess fluid trapped in body tissues. So does this mean you can blame diet soda for your bloated face? Probably not. Many people assume that artificial sweeteners, caffeine and carbonation can cause swelling, but most of the evidence points to Diet Coke being harmless overall (though it isn't as healthy as plain water).

Read more:What is Edema and Can Walking Trigger It?

Just because Diet Coke has zero calories per serving, thatdoesn't mean it's健康. A few highlights of what's in diet soda usually include:

Aspartame: Instead of sugar, Diet Coke is sweetened with aspartame, an alternative nutritive sweetener that yields only a discretionary number of calories,because your body doesn't break downthe aspartame the same way it does sugar.

Although you might have heard about its alleged dangers, there's no indication of a link between aspartame and edema. Aspartame has been approved by the美国食品药品监督管理局自1981年以来，已被100多个研究视为安全。

咖啡因：您可能会将液体保留归咎于咖啡因。毕竟，存在一个误解，认为咖啡因使您脱水，因此您的身体试图保留尽可能多的液体，以弥补丢失的东西。但事实并非如此：利尿剂实际上有助于减少肿胀和腹胀Heart & Strokeof Canada. Furthermore,Diet Cokehas only 46 milligrams of caffeine per 12-ounce serving, and most healthy adults can consume up to400 milligrams每天的咖啡因。

但是，更重要的是，咖啡因使您脱水可能是一种误解。据阿拉巴马大学伯明翰大学营养科学助理教授贝丝·基金（Beth Kitchin）博士在2014年接受采访时UAB News, caffeinated beverages don't dehydrate you, and diet soda can even serve as a hydrating alternative for those who don't like plain water.

Contrary to popular belief, caffeine and fluid retention have no correlation. Fluid retention has manyrecognized causes, but caffeine consumption isn't one of them.

Sodium: A commoncause of edemais eating too much salty food, but even though Diet Coke does contain sodium, it is only 40 milligrams per 12-ounce serving. TheDietary Guidelines for Americans, 2015-2020, recommends an upper level of 2,300 mg of sodium per day. Unless you're consuming more than 57 cans of diet soda a day, it is unlikely that your Diet Coke habit is to blame for edema.

Carbonation: Soda gets its signature fizziness from dissolved carbon dioxide.Consuming so many bubblesmight make you feel a little gassy, but the carbonation will not dehydrate your body — in fact,carbonated drinks与水一样保湿。

Read more:喝饮食可乐的副作用

Even if Diet Coke is unrelated to bloating and puffiness, that doesn't necessarily mean it will help you lose weight. On the contrary, studies have shown that consumption of Diet Coke can actually cause you to gain weight.

在2017年7月发表的一项研究中Canadian Medical Association Journal, the researchers found that consuming nonnutritive sweeteners causes weight gain and related conditions like metabolic syndrome and Type 2 diabetes.

仅仅因为它没有糖，并不意味着Diet Coke是一个健康的免费，但可能不是浮肿的原因。看看饮食的其他方面，如果您的腹胀不消失，请考虑其他方法reducing water retention.