Branch chain amino acid muscle growth effect is still controversial No symptoms of malnutrition do not need to eat protein powder

fitness, sports enthusiasts are an important consumer group of protein powder products. Whey protein is high in branch chain amino acids and is highly sought after by fitness enthusiasts.some well-known sports nutrition brands, but also branch chain amino acid content as its whey protein powder as the main selling point.does a chain amino acid have muscle-boosting properties? Is whey protein powder higher than mixed protein powder branch chain amino acids?September
,

, 2015, Consumer Reports sent to third-party authorities the inspection of Allianz Newtlie, Tang ChenBiJian, Yan Jian, Yikang, Combit, Kang Fulai and other

brand of mixed protein powder, Merix, Townsend, Combit,
Muscletech
and other
4
brand whey protein powder, its branch chain amino acid content was determined.results show that from the branch chain amino acid content of this indicator,
4
health protein powder as the selling point of whey protein powder compared to mixed protein powder has no obvious advantage. In fact, there is not enough scientific evidence to prove that the branch chain amino acid content is high, muscle growth effect is better.Controversal muscle enhancement function Guangzhou Huacheng Hui Square, a health club Wang surname fitness instructor told this reporter, most fitness enthusiasts have the habit of supplementing whey protein, because whey protein powder contains more branched chain amino acids, can stimulate muscle growth and rapid energy production.But Su Hao, an associate professor at Beijing Sports University, doesn't think whey protein powder is more effective at muscle growth than mixed protein powder, "Whey protein is a high-quality protein, but there is no evidence that it has a better muscle-boosting effect than proteins from other food sources." The so" of a branched chain amino acid that is considered a branch chain amino acid has not yet been verified.chain amino acids are commonly called lilac, proline and isoestine. Because it contains up to
35%
of the body's muscle protein, and because the body's muscle tissue can use branched chain amino acids as energy sources, it is the theory that supplementing branch chain amino acids is beneficial to promote muscle growth and relieve exercise fatigue.this report shows that
10,
protein powder branch chain amino acid content is somewhat different, compared to mixed protein powder, whey protein powder branch chain amino acid content is slightly higher. (Figure
3
)The Chinese Nutrition Society Honorary Chairman Ge Keyou, author of the "Chinese Nutrition Science Book", pointed out that "in exercise, because the muscles use branched chain amino acids as energy, blood amino acid levels decreased." The researchers hypothesized that supplying branch chain amino acid supplements in exercise helps maintain blood branch chain amino acid levels and reduces endotopic protein oxidation, therefore improving muscle motor ability. However, there is insufficient evidence to support this hypothesis in the experimental studies of acute and chronic exercise in this area. 's theory that branch-chain amino acids are more beneficial to muscle growth is controversial, and in his view, it is supported by some experimental data, but it is not very solid and needs more evidence to support it.as for fitness enthusiasts, is there any need to supplement protein powder? Su Hao says it depends on the purpose of fitness and the intensity of the exercise. "If the goal of fitness is to reduce fat, there is no need to supplement protein. If it is muscle-boosting or professional bodybuilding, etc., it can be appropriately supplemented. He also said that in terms of exercise intensity, the protein needs of non-professional gym-goers can be supplemented entirely through regular diets.fitness enthusiast Mai Ziwen told reporters that compared to the fitness before and after their own preparation of beef, eggs, chicken breast, protein is more convenient by punching protein powder supplement.be wary of supplements bent high blood cholesterol levels are considered one of the causes of cardiovascular disease.although
the
of 10 protein powder branch chain amino acids is not very different, but the cholesterol content of different products is significantly different in value. Kangfula high-nutrition protein powder, Amniutrilai a variety of plant protein powder and Combit protein powder did not detect cholesterol (testing limit of
2.6mg/100g
), while
Muscletech
whey protein powder cholesterol content of up to
160mg/100g
).Kangfula Pharmaceutical Co. , Ltd. quality department Liu surnamed person in charge of the existence of cholesterol in protein powder raw materials, not artificial addition, the general production of protein powder does not have a special process to remove cholesterol, including a certain amount is a normal phenomenon.", this is mainly due to differences in protein powder raw materials. In general, whey protein contains high cholesterol and plant protein cholesterol is almost zero. Fan Zhihong, associate professor in the Department of Nutrition and Food Safety, School of Food Science, Agricultural University of China, explains.Fan Zhihong believes that the indicator should not be overinterpreted. "This cholesterol level in protein powder does not do any harm to human health. Cholesterol in food generally does not meet the body's health risk threshold. China and the United States have lifted restrictions on cholesterol levels in food. Although protein powder is a common nutritional supplement in life, it is not suitable for everyone. Several protein powders are labeled as unsuitable for children on the outer packaging. protein powder is much higher than formula. Children's digestive system has not yet fully developed, not suitable to eat such products. "National-level dietitian Jiao Tong explains. " patients can ingest protein powder, depending on the situation. "Yu Huawei, director of the Nutrition Department of the Third Affiliated Hospital of Sun Yat-sen University, told reporters." Some patients with high postoperative nutritional needs can be properly supplemented with protein powder, and patients who eat less and patients with kidney liver disease are not suitable for eating protein powder. "" health food essence or food, can not replace drugs, there is no therapeutic effect on the disease. Zhai Huawei stressed. even as a nutritional supplement, protein powder is not a must. refer to the data in the Chinese Nutrition Society's

2013 revised Dietary Nutrient Reference Intake for Chinese Residents, the recommended intake of protein for adult men is
60g/
days, and for adult women it is
50g/
days. "the general population who do not show symptoms of malnutrition does not need additional protein supplementation." "The nutritionist at the national level made it clear. He explained that according to China's current nutritional levels and dietary habits, urban residents have a wide range of protein sources, the daily diet of milk, meat, eggs and other proteins can fully meet the needs of the human body. to the data in the Chinese Food Nutrition Table, the protein content of cereals is generally about
10%
, and the protein content of animal foods is
15%-25%
. according to the recommendations of the Chinese Nutrition Society, the Chinese People's Balanced Diet Pagoda, each person should eat
250-400g
of cereals, fish, poultry, meat, eggs and other animal foods
125g-225g
,
300g
milk and
30g-50g
of legumes. According to this dietary structure, protein intake from cereals is approximately
25-40g
, and protein intake from animal foods is approximately
35g
. Coupled with the protein intake of milk and legumes, the daily diet is perfectly suited to the body's protein needs. " protein is not the more the better. Excessive protein intake increases the burden on the liver and kidneys and is bad for human health. Fan Zhihong said.