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Your secret strength-building weapon could be sitting in your medicine cabinet. Boosting your consumption of vitamin D might help you maintain tougher muscles, says current research published in the diary Medicine & Science in Sports & Exercise.

Researchers analyzed 419 adults (20 to 76 decades old), and after controlling for numerous factors like age, sexuality, human body mass index, and blood pressure, unearthed that the participants with greater levels of vitamin D inside their system had a stronger relationship with arm and leg strength. (There clearly was an even more consistent link between N levels and supply strength.)

Although vitamin D's common claim to fame is its role in aiding your bones absorb calcium, the scientists state that vitamin D also plays an essential role in creating your Type II skeletal (a.k.a. fast-twitch) muscle fibers. As for why the vitamin might have more of an effect on your upper body, scientists chalk it as much as the variations in fiber type composition between the insanity workout scam legs and arms.

Now how a lot of this important vitamin should you be downing each day? The Institute of Medicine suggests a dietary intake of 600 IU each day, which will be the equivalent of 3 ounces of canned tuna and 3 ounces of cooked fish. Not a large fan of fish? Eggs, fortified milk, and cereals are other good resources of D. (Or get your daily dosage in a supplement. Take a look at our selects for The Very Best Multivitamins for Men.)