请问服用鱼油补充剂导致体重增加？

鱼油具有1茶匙41倍的热量和在1汤匙123个卡路里，报告美国农业部. Despite the caloric content, a few preliminary studies suggest the oil may actually lead to a reduction in waist circumference rather than weight gain.

两个ω-3脂肪酸的鱼油是二十碳六烯酸（DHA）和二十碳五烯酸（EPA）。这些营养素的食物来源包括富含脂肪的鱼类，如鲑鱼，金枪鱼，鲭鱼和鲱鱼，陈述了National Institutes of Health.

An additional omega-3 fatty acid called alpha-linolenic acid (ALA) is found in the plant foods of chia, flaxseed and walnuts. The body converts only a small amount of ALA to EPA and DHA, so it's important to get these nutrients from both fish and plant sources.

ω-3脂肪酸具有多种用途。它们提供能量和热量都环绕在身体的每一个细胞的细胞膜的重要组成部分。DHA水平是在大脑中，精子细胞和视网膜眼睛的特别高。这些健康的脂肪在免疫系统，肺，内分泌系统，心脏和血管，票据NIH的运作也发挥了作用。

The美国心脏协会（AHA）美国吃的ω-3的鱼类降低心脏节律异常，可导致猝死的危险。这也减缓血管硬化的发展，reduces triglyceride levels.

People should eat fish, especially fatty fish, twice a week, recommends the AHA. Each serving should be 3.5 ounces or approximately 3/4 cup. TheUSDA's ChooseMyPlate提供以下服务准则：鲑鱼牛排是4〜6盎司，金枪鱼一罐是3至4盎司和小鳟鱼是3盎司。

Read more:17 Reasons Why You Probably Need More Omega-3s in Your Diet

Some鱼的品种有汞和其他污染物，警告AHA。尽管这个问题的，利大于弊的绝经后妇女和男人谁是中年和老年的风险。

毫无疑问，吃富含脂肪的鱼是健康有益，但服用药片的好处是不太清楚。有时候，食物来源的营养素，从补充交付营养成分不同的效果。当你吃的鱼，你摄取各种维生素，矿物质及其他有益成分除了脂肪酸，但是当你吃那些药，你只摄取的脂肪酸，解释哈佛健康.

同样，采取了许多补品不能代替吃营养丰富的食物，如水果，蔬菜和粗粮。健康饮食的巨大价值并没有转化为补充。

动物实验研究鱼油对减肥的效果提出一个好处，但人体实验显示不一致的结果。出于这个原因，2015年11月发表的研究中PLOS Oneundertook a review of clinical trials to determine if the oil promotes weight loss.

ThePLOS Onereview says current findings didn't support an anti-obesity advantage, but the oil appeared to reduce waist circumference. A decrease in abdominal fat could help the obese, especially if they engage in lifestyle modifications, the authors concluded. Large-scale studies are needed to draw definite conclusions.

Improved heart health is a possible benefit of fish oil, states the梅奥诊所. Studies indicate that taking fish oil supplements for at least six months lowers the risk of heart-related events and death in people at high risk.

Multiple investigations note modest decreases in blood pressure in people taking the supplements. The positive effect may be more pronounced in people with moderate-to-highblood pressurethan in those with mildly elevated blood pressure, says Mayo Clinic.

按照Arthritis Foundation, DHA and EPA have anti-inflammatory properties that have value for arthritis. Preliminary evidence indicates fish oil pills may reduce joint tenderness and stiffness in rheumatoid arthritis and osteoarthritis.

科学文献的审查表明，当与抗抑郁药采取鱼油减少了抑郁症，指出关节炎基金会。油也减少了雷诺氏病，制约循环，使皮肤病症的症状。

Read more:鱼油补充剂的好处4 - 而3风险，你应该知道

The concentrated oil in supplements isn't risk-free.哈佛健康says that anyone middle-aged or older shouldn't take fish oil pills without consulting a doctor.

当采取药片的​​指示，他们通常被认为是安全的。然而，副作用包括口臭，大便溏，消化不良，恶心，皮疹和鱼腥回味。

鱼油丸有他们的好处之一相关的副作用。虽然他们可能减少血液凝块的风险，服用过多可能会引起出血的可能性，称哈佛健康。如果剂量足够高，出血的危险性增加可能导致中风梅奥诊所说。高剂量的鱼油还可以抑制免疫力。

目前还不知道如果人们有海鲜过敏可以安全地采取鱼油胶囊。过敏反应的症状包括荨麻疹，瘙痒，皮疹和舌的肿胀，嘴唇或脸，笔记克利夫兰诊所. Symptoms may also include breathing problems. If you experience these effects, report them to your doctor as soon as possible.

不像药物，没有监督机构规定的补充配料的质量，来源或数量。在一些品牌的鱼油，研究发现多氯联苯，这是与癌症有关的化学物质的微量。其他研究显示贴在产品标签上的ω-3脂肪酸的量是在某些产品中不准确的。

Fish oil interacts negatively with some medications. Exercise care in taking it with anti-clotting drugs like warfarin or aspirin; it might raise the risk of bleeding.

Don't take fish oil with orlistat, because the drug will reduce the absorption of the beneficial fat. Instead, take the supplement and medication two hours apart. Contraceptive drugs may suppress the positive effect of the oil on triglycerides. Fish oil may also decrease vitamin E levels, notes the Mayo Clinic.