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Fight Aging With Whey Protein

Original post can be found at:

http://www.sportsnutritionsupplementguide.com/health-wellness/anti-aging/item/1519-why-whey-protein-is-the-key-to-anti-aging#.VZ2WSvlViko

Fitpicture310x250

Adequate protein intake is vital to anyone seeking to preserve muscle mass, especially since the aging process threatens the loss of all that hard-earned muscle through a process called sarcopenia. Sarcopenia causes a loss of muscle mass and strength in all individuals as they age, even in die-hard gym addicts.

The aging process hits us with a double whammy because 1) our dietary protein needs increase over time, and 2) our ability to synthesize new proteins plummets as a consequence of diminished levels of testosterone, human growth hormone, and insulin-like growth factor-1. In other words, it becomes tougher and tougher to meet the aging body’s protein needs, and the result is a loss of muscle.

One of the biggest challenges in meeting the protein demands of the body as we age is the physical challenge of consuming adequate protein. Protein powders are an excellent means of meeting protein requirements in a low bulk form since they are dissolved in liquid. Whey protein in particular is an excellent protein source for anyone over the age of 30, provided they have no issues with allergy or intolerance to whey.

Whey protein is rich in branched chain amino acids, especially leucine, which is considered the most important branched chain amino acid for protein synthesis, especially in older people. Branched chain amino acids are also responsible for proper dermal collagen protein synthesis, so they play a huge role in the condition of the skin, maintaining its suppleness and tone.

Another age-related benefit of supplementing one’s diet with whey protein is the presence of lactoferrin, which fortifies bone and prevents osteoporotic fractures by activating osteoblasts. Whey protein also contains high levels of cysteine, an amino acid which boosts glutathione production. Glutathione, an antioxidant with powerful anti-aging effects, steadily declines naturally as we age, and since its production relies on the presence of cysteine, the introduction of whey protein into a meal plan can guard against age related diseases.

Whey protein has profound effects on glucose metabolism as well. It reduces serum glucose levels in healthy individuals while impairing glucose tolerance in diabetic and obese individuals. When consumed consistently as part of a sensible high protein meal plan, the result is a reduction in body weight and an increase in fat oxidation. This is due to the release of leptin, cholecystokinin, and glucagon like-peptide 1, all of which create a feeling of satiety.

In summary, the benefits of whey protein are numerous and significant, especially for older individuals. If you have yet to incorporate whey protein into your meal plan and you have been lamenting the ravages of Father Time, do yourself a favor and add whey protein to your daily regimen.

References: Sousa G et al. Dietary whey protein lessens several risk factors for metabolic diseases: a review. Lipids Health Disc. 2012;11:67

The Power Of Leucine

Original post can be found at:

http://www.sportsnutritionsupplementguide.com/supplementation/item/1528-the-power-of-leucine

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Leucine could be considered the most important supplement you should add to your regimen as you age, especially if you are a competitor. Leucine breaks down much faster during exercise than the other two branched-chain amino acids (isoleucine and valine), and is also unique in that it plays a critical role in intramuscular protein production through anabolic signaling and mediation of insulin secretion, so it certainly makes sense to ensure that you are getting sufficient amounts of leucine in your diet.

If you are over the age of 35 or 40, leucine is depleted even more rapidly, so replenishing this amino acid through leucine rich food or through leucine supplements can be an insurance policy to guard against age-related muscle loss.

Leucine crosses the blood-brain barrier, and once in the brain, it sends satiety signals to the hypothalamus, thus guarding against overeating.1 It also promotes glucose tolerance and insulin sensitivity by optimizing glucose metabolism. Another important function which leucine has in the brain is the stimulation of glutamate production and release. Since glutamate is an important neurotransmitter in the brain which is involved in memory and learning, the presence of leucine exerts protective effects on cognitive function.

One study by Donato et al discovered that leucine supplementation while on a calorie restricted diet resulted in more fat loss overall, as well as increased protein synthesis in muscle tissue and the liver. 2 The human requirement for leucine is the highest of all the essential amino acids, at approximately 40 milligrams per kilogram of body weight in sedentary adults. However, this requirement does not take into account the muscle preserving needs of individuals who are engaged in intense resistance training. Such individuals benefit greatly from supplementing with up to 200 milligrams of leucine per kilogram of body weight. 3

If you are considering adding leucine to your regimen, be sure to time it so that you ingest it when you take in a protein-rich meal. If you prefer actual food sources of leucine, you can consume turkey breast (over 2 grams of leucine in a 3 ounce serving), fish, dairy products, seeds, soy or nuts. Leucine powder is VERY bitter, so make sure to mix it with a tasty protein powder, or take it in capsule form with your whole food meals. This will optimize protein synthesis in muscle tissue and enhance the anabolic effect.

REFERENCES

1. Potier M, Darcel N, Tome (2009) Protein, amino acids and the control of food intake. Curr Opin Clin Nutr Metab Care 12(1):54-58.

2. Donato J Jr, Pedrosa RG, Cruzat VF, Pires IS, Tirapegui J (2006) Effects of leucine supplementation on the body composition and protein status of rats submitted to food restriction. Nutrition 22 : 520 –527,2006

3. WHO/FAO/UNU (2007) Protein and amino acid requirements in human nutrition. Report of a joint WHO/FAO/UNU expert consultation. World Health Organ Tech Rep Ser. 1–265.

Why Whey Protein Is The Key To Anti-Aging

Original post can be found at:

http://www.sportsnutritionsupplementguide.com/health-wellness/anti-aging/item/1519-why-whey-protein-is-the-key-to-anti-aging#.VZ2WSvlViko

Fitpicture310x250

Adequate protein intake is vital to anyone seeking to preserve muscle mass, especially since the aging process threatens the loss of all that hard-earned muscle through a process called sarcopenia. Sarcopenia causes a loss of muscle mass and strength in all individuals as they age, even in die-hard gym addicts.

The aging process hits us with a double whammy because 1) our dietary protein needs increase over time, and 2) our ability to synthesize new proteins plummets as a consequence of diminished levels of testosterone, human growth hormone, and insulin-like growth factor-1. In other words, it becomes tougher and tougher to meet the aging body’s protein needs, and the result is a loss of muscle.

One of the biggest challenges in meeting the protein demands of the body as we age is the physical challenge of consuming adequate protein. Protein powders are an excellent means of meeting protein requirements in a low bulk form since they are dissolved in liquid. Whey protein in particular is an excellent protein source for anyone over the age of 30, provided they have no issues with allergy or intolerance to whey.

Whey protein is rich in branched chain amino acids, especially leucine, which is considered the most important branched chain amino acid for protein synthesis, especially in older people. Branched chain amino acids are also responsible for proper dermal collagen protein synthesis, so they play a huge role in the condition of the skin, maintaining its suppleness and tone.

Another age-related benefit of supplementing one’s diet with whey protein is the presence of lactoferrin, which fortifies bone and prevents osteoporotic fractures by activating osteoblasts. Whey protein also contains high levels of cysteine, an amino acid which boosts glutathione production. Glutathione, an antioxidant with powerful anti-aging effects, steadily declines naturally as we age, and since its production relies on the presence of cysteine, the introduction of whey protein into a meal plan can guard against age related diseases.

Whey protein has profound effects on glucose metabolism as well. It reduces serum glucose levels in healthy individuals while impairing glucose tolerance in diabetic and obese individuals. When consumed consistently as part of a sensible high protein meal plan, the result is a reduction in body weight and an increase in fat oxidation. This is due to the release of leptin, cholecystokinin, and glucagon like-peptide 1, all of which create a feeling of satiety.

In summary, the benefits of whey protein are numerous and significant, especially for older individuals. If you have yet to incorporate whey protein into your meal plan and you have been lamenting the ravages of Father Time, do yourself a favor and add whey protein to your daily regimen.

References: Sousa G et al. Dietary whey protein lessens several risk factors for metabolic diseases: a review. Lipids Health Disc. 2012;11:67