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As soon as possible, following your workout you need to consume: • 30 – 50 grams of a lean complete protein like whey, soy, egg, chicken or fish. • 30 – 50 grams of carbohydrates with a high glycemic index. Why lean protein? Because fat slows the absorption of protein and carbs. During a brief window of opportunity after your workout, protein synthesis occurs at the highest rate. This is due to the micro-trauma (broken-down muscle tissue) that occurred during your workout. Complete recovery will be optimized if you provide your muscles with a large supply of amino acids—the key components of protein—within 45 minutes after your training session. A whey protein shake is the best post-workout protein choice because it is so rapidly absorbed, and it has the highest efficiency ratio, or availability to the body, of all proteins. Why carbs with a high glycemic index? Immediately following your workout is the only time to eat carbs that rapidly absorb into the blood stream as the glucose causes an insulin spike. Insulin helps shuttle protein into the muscles, repairing and building new muscle. It is also an important hormone that regulates the storage, replacement, and use of glucose. During a workout, the body uses stored glucose that is in the blood and muscles as fuel for the activity. If the lost glucose isn’t refilled within about 45 minutes after training, your body rapidly goes from an anabolic state (muscle growth and repair) to a catabolic state (cannibalizing of the body’s muscle for protein and energy). Since insulin signals the body to replenish and store glycogen, and the release of insulin is best triggered by eating foods with a high glycemic index, it makes sense that eating carbohydrates with a high glycemic index, along with some lean protein, is the best post-workout choice. An effective and convenient post workout meal is a whey or soy protein supplement, which contains maltodextrin, or simple sugars, as its carb source.
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