How do muscles become stronger? Oddly enough, by becoming weaker first. When muscles are worked hard, they actually break down. The muscle fibers stretch and tear. As they heal, though, the fibers grow bigger and stronger. They do this mostly by incorporating protein to build new muscle tissue.
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For most people, a healthy diet is more than enough to encourage muscles to get stronger. But those looking to speed that process along often add supplements to their diet.
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Do these supplements work? Research is mixed, says Angel Planells, a Seattle-based registered dietitian nutritionist and spokesperson for the Academy of Nutrition and Dietetics. “My goal would be for folks to have good quality nutrition, adequate hydration and a solid workout plan that will help promote muscle growth. Supplements can work, but we can obtain several of these products through food,” he says.
Indeed, the vast majority of Americans consume more than enough protein. Have you ever heard of anyone suffering a protein deficiency?
Only those following a vegan diet and those with some rare health conditions may need to add protein supplements to their diet.
“One certainly does not need to eat more than recommended amounts at one time to build muscle,” says Yasi Ansari, a registered dietitian and certified specialist in sports dietetics based in Los Angeles and also a spokesperson for the Academy of Nutrition and Dietetics.
That said, here is what you need to know about muscle-building supplements.
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A first choice among many athletes is the protein shake.
“Low-fat chocolate milk is a great and easy choice for muscle building and recovery,” Planells says. “Milk can serve as a more economical option to a more expensive protein drink.”
Adding a protein powder “can support an athlete in meeting their protein needs if they are unable to meet their recommended needs via food,” Ansari says. She recommends spreading the protein intake evenly throughout the day.
And Planells warns elite competitive athletes to “do your research to make sure that the protein shake you are consuming does not contain substances banned by college and professional sporting agencies, if applicable.”
In addition, while some extra protein may help rebuild muscle after working out, be mindful that consuming an excessive amount of protein can be harmful to your liver and kidneys. “Consult with a registered dietitian nutritionist to help get an idea of the amount needed for your desired sporting activities and to help you accomplish your goals,” Planells says.
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The body uses nine essential amino acids to build proteins, and of those nine, three are called branched-chain amino acids, or BCAAs: leucine, isoleucine and valine. These are found in protein-rich foods, like meat, eggs and dairy products. They are also sold as a dietary supplement, most often as a powder.
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