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HereÂs the lowdown on what fiber can do for you and your physique.
1. Fiber Improves Absorption
Consuming fiber is an important part of creating an anabolic environment in your body, because fiber enhances nutrient absorption along the intestinal walls by helping to keep the walls free of undigested food.
2. Fiber Helps Process Dietary Fat
Calorie for calorie, a high-fat diet is not as anabolic or conducive to gains in mass as a lower-fat and higher-carbohydrate diet. Saturated fat, in particular, can contribute to poor heart health and increase the storage of bodyfat. Fiber binds with some of the dietary fat in a meal and pulls it through your body. If youÂre eating a fattier cut of steak, or dairy products such as cheese, yogurt or whole milk, a green salad can help neutralize some of the extra fat calories. Even if youÂre eating low-fat protein foods, adding fiber-rich veggies or ending a meal with a piece of fruit offers fat-fighting benefits.
3. Fiber Affects Carb Digestion
Yams, red potatoes, whole-grain bread and oatmeal are among the best slow-burning energy foods. Not only do they provide glucose, the energy source muscles need to work and grow, but they are more slowly digested than most carb sources. Their high fiber content increases the duration of digestion of carbohydrates. When you slow the entry of carbohydrates into the blood, the ÂfuelÂ lasts longer. When carbohydrates break down slowly — the result of eating fiber at meals — the body tends to store more of the carbohydrates as muscle glycogen rather than as bodyfat.
4. Fiber Increases Insulin Sensitivity
When you eat carbohydrates, the body releases insulin, a strong anabolic hormone. Insulin drives carbohydrates and protein into your muscles, resulting in greater recovery and growth. A potential limiting factor is something called insulin sensitivity. Muscles have receptors for insulin located on their outer edges. The greater the receptor affinity, or attraction, the better insulin can drive carbohydrates and protein into the muscles. Regular training, high levels of muscle mass and low levels of bodyfat enhance this attraction. Fiber, especially the soluble kind, also plays a role. Foods such as oatmeal, applesauce, peas, pears and black beans offer soluble fiber (wheat bran, for example, is a source of insoluble fiber). Soluble fiber enhances the attraction and helps improve insulin sensitivity.
5. Fiber Helps You Eat Less
ItÂs obvious that vegetables are great for all dieters, including bodybuilders ripping up. Three cups of broccoli yield only 75 calories. ThatÂs a lot of chewing for very few calories. An added benefit of fiber is that it blunts your appetite by making you feel fuller. Fiber contributes to the release of cholecystokinin, a hormone produced in the small intestine that triggers a sensation of satiety in the brain. Mixing vegetables into rice or pasta or complementing a baked potato with a salad helps curb the appetite.
6. Fibrous Foods Can Give You a Harder Appearance
There is scientific confirmation that some fiber-rich vegetables, such as cabbage, broccoli, cauliflower and spinach, contain compounds called indoles. Indoles can lead to slightly lower levels of estrogen in males, which, in turn, leads to less water retention and ever-so-slightly higher levels of testosterone. And that can help you look harder when you diet.
7. Time Your Fiber Consumption
Skip fiber after workouts. The goal of posttraining meals is speeding up digestion — to get glucose from carbohydrates into the blood as fast as possible to stimulate muscle recovery and growth. Having fiber in a posttraining meal would slow down digestion, so save it for all other meals, including late-night snacks, which should be high in protein and have few carbs, if any.