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AAKG(精氨酸α酮戊二酸)补充剂的用途、剂量及副作用  

2015-09-10 17:24:12|  分类: 氨基酸与蛋白质 |  标签: |举报 |字号 订阅

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Where it comes from: Arginine Alpha-ketoglutarate (also known as AAKG and arginine) is a nonessential amino acid that’s necessary when it comes to making nitric oxide in the liver. “Both AAKG and nitric oxide amplify the beneficial muscle-building effects of exercising and nutritional supplements,” explains registered dietitian and American Dietetic Association spokesperson Jim White.

它来自何方:精氨酸α酮戊二酸(也称为AAKG和精氨酸)是一种非必需氨基酸,当在肝脏中用来制造一氧化氮时是必需的。“AAKG和一氧化氮放大了锻炼和营养补充剂的有利的肌肉建造(muscle-building)作用,”注册营养师和美国饮食协会发言人吉姆·怀特解释道

What it’ll do for you: Arginine Alpha-ketoglutarate is used to treat kidney disease, intestinal and stomach disorders, liver problems and cataracts. It is also used to increase sexual energy, and for the prevention and treatment of erectile dysfunction disorder and sterility in men. Some people take alpha-ketoglutarate to improve peak athletic performance because it helps the liver break down by-products of muscle exercise such as ammonia. Athletes believe AAKG supplements help them exercise longer with less pain and stiffness, and build up more lean body mass.

它会帮你做什么:精氨酸α酮戊二酸用于治疗肾脏疾病、肠道和胃疾病、肝病和白内障。它还可以用于提高性能量,预防和治疗男性勃起功能障碍的障碍和不育。有些人采取α酮戊二酸改善峰运动性能,因为它有助于肝脏分解氨等副产品的肌肉运动。运动员相信AAKG补充剂帮助他们较长时间的锻炼有更少的疼痛和僵硬,并建立更瘦的体重。

“Evidence also shows that L-arginine stimulates protein synthesis, which helps the body build muscles, and increase their size, strength and endurance,” says White. It has been found that, by taking 10 to 15 grams of AAKG per day, the body’s insulin level increases by 20 to 30 percent, which in turn, theoretically increases strength gains and muscle growth. How? L-argnine increases nitric oxide production in blood vessels, increasing their diameter. This increases blood flow without raising blood pressure. When blood vessels dilate, more blood reaches the muscles and tissues and provides a larger amount of carbohydrates, proteins and various muscle-building hormones.

“Several studies found that the use of arginine alpha-ketoglutarate by bodybuilders promoted larger and longer lasting pumps,” White explains. “The muscles were tighter and stronger. Some of the bodybuilders reported feeling ‘pumped’ all day long.”

Suggested intake: “Red meat is rich in L-Arginine, so consuming lean cuts of beef do provide increased protein, but this does not have the same effect as taking a supplement with Arginine,” explains White. “Most supplements are manufactured with a time release component that provides the nutrient for a period of time. Also, in order to reap the same amount of nutrients from a supplement, one would have to consume large amounts of food. It is more efficient to use a supplement.”

建议的摄入量:“红肉富含精氨酸,所以消耗牛肉各部位瘦肉确实提供了增加摄入蛋白质,但这与服用精氨酸补充剂并不具有相同的作用,”怀特解释道。“大多数补充剂使用提供了营养一段时间的一次释放组件生产。同时,为了从补充剂获得相同数量的营养,人们人们必须消耗大量的食物。使用补充剂为更有效。”

As a supplement, AAKG is sold in a tablets, pills or powder. The suggested dosage is two or three tablets once or twice a day on an empty stomach, preferably in the morning and at least 30 minutes before workouts. In powder form, the recommended dose ranges from 1500 milligrams to 3500 milligrams. Many experts believe it is safe—and actually more beneficial—to mix AAKG powder with creatine-based products.

作为一种补充剂,AAKG以片剂、药片或粉末的形式销售。建议的用量是一次2片或3片,一天1次或2次空腹服用,最好是在早晨和在锻炼之前至少30分钟服用。对于粉末的形式,推荐剂量范围从1500毫克到3500毫克。许多专家认为它是安全的,实际上AAKG粉混合基于肌氨酸的产品服用作用更好

Associated risks/scrutiny: So far, research is inconclusive on the adverse side effects of this product and it appears to be safe for most adults. In an eight-week study, subjects reported no abnormal side effects from taking about four grams per day of AAKG.

However, a 2009 paper reported three patients who were admitted to the emergency room with very negative effects including dizziness, vomiting and loss of consciousness. AAKG is not recommended for continuous, high-level use for more than 60 days.

AAKG is a natural blood thinner so people taking blood thinners should use with caution. Some doctors believe that people with any form of the herpes virus (cold sores or genital herpes) should not consume AAKG as it may induce virus symptoms.

AAKG是一种天然的血液稀释剂,所以人们服用血液稀释剂应谨慎使用。一些医生认为,任何形式的疱疹病毒(唇疱疹或生殖器疱疹)不应消耗AAKG,因为它可能引起病毒的症状。

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