Thursday 14 March 2013

Fiber, The Underrated Nutrient


By Juan Rojas
Introduction
Eating enough protein throughout the day? Check. Eating enough calories to grow? Check.  Did you go balls to the wall in the gym? Check.  How’s your fiber intake for the day? If you’re answer to this is “I don’t really know”, you may want to reexamine how much fiber you’re eating. Many of us simply don’t know how much fiber we’re taking in, others don’t really care, they think, “that’s the stuff my granny needs”, but you may be surprised on how it affects your gains and your overall health.

Fiber is a word we hear all the time if we are interested in nutrition, but as bodybuilders we do not pay much more attention to it other than “it helps you go to the bathroom.” Sure this is true with one of the two types of fiber, but it has a way more important role in the body than this and can help you not only have more muscular gains, but also look your best.  Let’s see exactly what fiber does in the body.

Types of fiber and how they work
There are 2 types of dietary fiber we intake through our food. The first one is soluble fiber, this fiber is responsible for slowing down digestion thus lowering blood sugar levels, and lowering cholesterol.  When ingested, soluble fiber ferments in your intestines and creates substances that have many health benefits, it also slows down the absorption of carbohydrates allowing you to feel fuller for a longer amount of time. This is great when cutting because we all know how long each minute feels when we are waiting for the next meal.  

It also helps stabilize blood sugar levels allowing for a delayed insulin response, although insulin is a very anabolic hormone, it is mostly important after our workouts, constantly spiking insulin throughout the day may lead your body to store fat easier (under certain circumstances) and decrease our insulin sensitivity when we should be saving it for after our workout. This is why fiber is beneficial anytime EXCEPT for post workout, when we want nutrients shuttled to our muscles right away.

The second type of fiber is insoluble, this type of fiber regulates our blood sugar and speeds up the process that the waste in our body goes through in the digestive system, thus allowing us to go to the bathroom easier. This type of fiber acts like a sponge because as it passes through our digestive system it swells up in the intestines picking up water removing waste and toxins your body does not need.

How does fiber benefit a bodybuilder?
As bodybuilders, our health is a major priority, now some will argue that bodybuilding is not a healthy sport at all due to the use of so many hormones, certain supplements and chemicals. I won’t argue that; but a bodybuilder straining their body with these things should care even MORE about their health, so they have to try to be as healthy as possible in other aspects. As we saw, fiber is very healthy for you as it stabilizes blood sugar levels and lowers cholesterol.

It also creates short chain fatty acids in the body, which help maintain the intestinal walls healthy. As bodybuilders, we eat a lot more than the average person, and in order to aid the body with digestion and defecation fiber is #1.

Lastly, fiber makes you feel fuller for longer and is not digested by the body, meaning you can eat things containing fiber and your body cannot use it as energy, or calories. This makes it easier to eat more and feel fuller for longer times, allowing you to cure those cravings over those chips and cookies on the counter. A study showed that diets high in protein and high in fiber have both shown to reduce hunger as opposed to a diet with low fiber.

Where can I get this fiber you speak of?
Fiber is found mostly in vegetables, fruits and whole grains. If your diet is made up of these foods, you’re probably hitting the 25-40 grams of daily fiber recommended for adults. If your diet contains little vegetables and mostly refined or “white” carbohydrates you should look into either changing your diet, or adding a fiber supplement to it.

Many times when a bodybuilder is going through a low carb “cutting phase” his only source of fiber may be vegetables. This may cause constipation and I recommend a fiber supplements while cutting to ease digestion and help you feel fuller for longer.

Now, does this mean you should go out and eat all the fiber you can stuff down your throat? NO! Just because a certain amount is good, it doesn’t mean it should be taken above and beyond. If you eat too much fiber your body begins to have the mal absorption of certain nutrients, it may cause bloating, abdominal pain and gas.

Conclusion
Now that we have seen how fiber may benefit a bodybuilder, make sure you are getting enough of it. You should be taking in a healthy balance of insoluble and soluble fiber. It may not be directly correlated with you getting on the Olympia stage, but it’s the pursuit of correctly putting all the little pieces together that creates the grand picture at the end of the puzzle. Like eating your fiber, being consistent to your diet, getting enough healthy fats, getting enough sleep etc.

My goal with these articles is to inform you on how the scientific processes work in the body and how things may benefit you if achieving a great physique is your goal. So House of Iron readers, keep training hard, eating your fiber and giving everything you do 110%!

If you want me to write about a specific topic, experience or a specific supplement on this blog please let me know, your input and feedback is appreciated, comments can be made anonymous!

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 References

Nickols-Richardson SM, Coleman MD, Volpe JJ, Hosig KW. Perceived hunger is lower and weight loss is greater in overweight pre-menopausal women consuming a low-carbohydrate/high-protein vs. high-carbohydrate/low-fat diet. J. Am. Diet. Assoc. 2005 Sep;105(9):1433-7.

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