Benefits and Risks of Whey Protein
Whey and Soy manufacturers did a superb job of confusing the public. For 5 years now the health and fitness community has been drinking up soy.
Eventually a research studies showed that due to its quick stomach emptying properties most of the protein consumed via whey protein is metabolized (burned up by liver enzymes). The whey manufacturers first responded by increasing the number of grams per serving. More protein would have to be consumed, thus more protein is sold.
Soy got popular with vegetarians. The industry watched when whey sales spiked, thus, to get their own position, they targeted on the "health" marketplace. Many of the studies are valid, however, they do not represent the entire picture.
One study looked at two groups of healthy middle aged men that were given isocaloric meals with one group eating soy protein, while the other consumed animal protein. They wanted to find out if there is a decreased propensity of gallstones when animal products are replaced by soy proteins. Very often gallstone accumulation is tied to cholesterol crystallization, so they then examined the participants cholesterol levels.
The study showed that cholesterol crystallization was slightly retarded in the soy group extrapolating that soy can help in preventing gallstones. Here's what the study neglected to address. There wasn't any control over fruit and vegetable intake. Soy is a vegetable, and it does happen to fall into the group of veggies that are high in isoflavones.
There are many benefits associated with the consumption of isoflavones, including a lowering of cholesterol levels. Contrarily, research has shown that the ingestion of meat is associated with an elevated cholesterol levels. This is not to say that people who eat soy will be healthier and have a better cholesterol profile than those who consume meat and vegetables. This just goes to show you that extrapolations drawn from research is often taken out of context and overemphasized.
Scientific studies indicate that there are cancer killing benefits of a meal plan rich in vegetables like soy. Most people would not assume that people who ingest soy instead of milk, egg-whites, and lean protein will demonstrate improved health, if a physical activity ingredient is included, the study would be invalidated.
Much of the information promoted specific to soy is published by companies with a vested interest in Soy product sales, like The USB (United Soybean Board). This doesn't mean that soy isn't an excellent source of protein, rather it shows that the health benefits have been taken out of context to sell Soy products.
As far as metabolism is concerned it appears that you are best off ingesting supplemental protein from a mix of whey & casein protein. The new protein supplements will hit the market and feature this exact combination of proteins. You are best to include a wide a variety of food as possible in your nutrition program. - 17273
Eventually a research studies showed that due to its quick stomach emptying properties most of the protein consumed via whey protein is metabolized (burned up by liver enzymes). The whey manufacturers first responded by increasing the number of grams per serving. More protein would have to be consumed, thus more protein is sold.
Soy got popular with vegetarians. The industry watched when whey sales spiked, thus, to get their own position, they targeted on the "health" marketplace. Many of the studies are valid, however, they do not represent the entire picture.
One study looked at two groups of healthy middle aged men that were given isocaloric meals with one group eating soy protein, while the other consumed animal protein. They wanted to find out if there is a decreased propensity of gallstones when animal products are replaced by soy proteins. Very often gallstone accumulation is tied to cholesterol crystallization, so they then examined the participants cholesterol levels.
The study showed that cholesterol crystallization was slightly retarded in the soy group extrapolating that soy can help in preventing gallstones. Here's what the study neglected to address. There wasn't any control over fruit and vegetable intake. Soy is a vegetable, and it does happen to fall into the group of veggies that are high in isoflavones.
There are many benefits associated with the consumption of isoflavones, including a lowering of cholesterol levels. Contrarily, research has shown that the ingestion of meat is associated with an elevated cholesterol levels. This is not to say that people who eat soy will be healthier and have a better cholesterol profile than those who consume meat and vegetables. This just goes to show you that extrapolations drawn from research is often taken out of context and overemphasized.
Scientific studies indicate that there are cancer killing benefits of a meal plan rich in vegetables like soy. Most people would not assume that people who ingest soy instead of milk, egg-whites, and lean protein will demonstrate improved health, if a physical activity ingredient is included, the study would be invalidated.
Much of the information promoted specific to soy is published by companies with a vested interest in Soy product sales, like The USB (United Soybean Board). This doesn't mean that soy isn't an excellent source of protein, rather it shows that the health benefits have been taken out of context to sell Soy products.
As far as metabolism is concerned it appears that you are best off ingesting supplemental protein from a mix of whey & casein protein. The new protein supplements will hit the market and feature this exact combination of proteins. You are best to include a wide a variety of food as possible in your nutrition program. - 17273
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