Sport Nutricion
Páginas: 7 (1559 palabras)
Publicado: 7 de septiembre de 2011
The science of sports ingredients
3 commentsBy Stephen Daniells, 07-Jun-2010
Related topics: Research, Antioxidants, carotenoids, Dairy-based ingredients, Minerals, Phytochemicals, plant extracts, Proteins, peptides, amino acids, Soy-based ingredients, Vitamins & premixes, Energy & endurance
In the third part of our special series on sports nutrition, NutraIngredients looks at thereigning champions in sports ingredients and takes a look at the science behind new contenders to the crown.
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Sports nutrition is a very competitive market: Datamonitor, which classifies sports nutrition as sports drinks and energy bars, places the European market at US$2.8bn (€2.3bn) in 2008, with a forecast to reach $3.6bn (€2.95bn) by 2013.
In the US, sports nutrition sales werevalued at $2.9bn (€2.4bn) in 2008, forecast to grow to $3.5bn (€2.9bn) by 2013.
But what ingredients are driving the product innovations?
Protein
Protein is a key player in sports nutrition products, whether it’s the protein-rich products for body builders or ‘softer’ products for the less serious athlete. The main sources of protein are whey from dairy and soy proteins. A recent review bySolae’s Gregory Paul outlines the rationale for a blend of proteins from animal and vegetal sources (Journal of the American College of Nutrition, 2009, Vol. 28, No. 4, 464S-472S).
Concerns have been raised over excessive protein intakes, however, with some linking this to calcium wasting or extreme pressure on the kidneys. A position paper by the International Society of Sports Nutritionsupported the intake of protein by exercising individuals, with recommendations of between 1.4 and 2 grams per kilograms of body weight per day (that’s 98 grams per day for a 70 kg person).
“When part of a balanced, nutrient-dense diet, protein intakes at this level are not detrimental to kidney function or bone metabolism in healthy, active persons,” states the position paper. “While it is possiblefor physically active individuals to obtain their daily protein requirements through a varied, regular diet, supplemental protein in various forms are a practical way of ensuring adequate and quality protein intake for athletes.” (Journal of the International Society of Sports Nutrition , 2007, 4, 8)
Co-Q10
Coenzyme Q10 plays a key role in energy and endurance. With chemical structure2,3-dimethoxy-5-methyl-6-decaprenyl-1,4-benzoquinone, it is also known as ubiquinone because of its 'ubiquitous' distribution throughout the human body.
The level of CoQ10 produced by the body begins to drop after the age of about 20, and the coenzyme is concentrated in the mitochondria - the 'power plants' of the cell. It plays a vital role in the production of chemical energy by participating in theproduction of adenosince triphosphate (ATP), the body's co-called 'energy currency'.
Various studies support the benefits of CoQ10 for athletes and athletic performance. Japanese researchers reported in 2008, for example, that CoQ10 possessed anti-fatigue effects. Both fatigue and recovery time were decreased as a result of 300 milligrams of CoQ10 for eight days (Nutrition, Vol. 24, pp.293-299).
Carnitine
Another established ingredient is L-carnitine, a compound reported to play a critical role in fat and energy metabolism. L-carnitine is involved in the transport of long-chain fatty acids into the mitochondria where they are metabolized for energy.
University of Connecticut scientists reported in the Journal of Strength and Conditioning Research (2007, Vol. 21, pp. 259-264),for example, that supplements of L-carnitine L- tartrate (Carnipure, Lonza) may reduce markers of oxidative stress and improving recovery at a one gram doses for eight weeks.
Carnosine
Not to be confused with carnitine, L-carnosine and its precursor beta-alanine are popular sports supplements. According to Dr Matti Tolonen, Docent of Occupational Health at the Institute of Public Health,...
3 commentsBy Stephen Daniells, 07-Jun-2010
Related topics: Research, Antioxidants, carotenoids, Dairy-based ingredients, Minerals, Phytochemicals, plant extracts, Proteins, peptides, amino acids, Soy-based ingredients, Vitamins & premixes, Energy & endurance
In the third part of our special series on sports nutrition, NutraIngredients looks at thereigning champions in sports ingredients and takes a look at the science behind new contenders to the crown.
[pic][pic]
Sports nutrition is a very competitive market: Datamonitor, which classifies sports nutrition as sports drinks and energy bars, places the European market at US$2.8bn (€2.3bn) in 2008, with a forecast to reach $3.6bn (€2.95bn) by 2013.
In the US, sports nutrition sales werevalued at $2.9bn (€2.4bn) in 2008, forecast to grow to $3.5bn (€2.9bn) by 2013.
But what ingredients are driving the product innovations?
Protein
Protein is a key player in sports nutrition products, whether it’s the protein-rich products for body builders or ‘softer’ products for the less serious athlete. The main sources of protein are whey from dairy and soy proteins. A recent review bySolae’s Gregory Paul outlines the rationale for a blend of proteins from animal and vegetal sources (Journal of the American College of Nutrition, 2009, Vol. 28, No. 4, 464S-472S).
Concerns have been raised over excessive protein intakes, however, with some linking this to calcium wasting or extreme pressure on the kidneys. A position paper by the International Society of Sports Nutritionsupported the intake of protein by exercising individuals, with recommendations of between 1.4 and 2 grams per kilograms of body weight per day (that’s 98 grams per day for a 70 kg person).
“When part of a balanced, nutrient-dense diet, protein intakes at this level are not detrimental to kidney function or bone metabolism in healthy, active persons,” states the position paper. “While it is possiblefor physically active individuals to obtain their daily protein requirements through a varied, regular diet, supplemental protein in various forms are a practical way of ensuring adequate and quality protein intake for athletes.” (Journal of the International Society of Sports Nutrition , 2007, 4, 8)
Co-Q10
Coenzyme Q10 plays a key role in energy and endurance. With chemical structure2,3-dimethoxy-5-methyl-6-decaprenyl-1,4-benzoquinone, it is also known as ubiquinone because of its 'ubiquitous' distribution throughout the human body.
The level of CoQ10 produced by the body begins to drop after the age of about 20, and the coenzyme is concentrated in the mitochondria - the 'power plants' of the cell. It plays a vital role in the production of chemical energy by participating in theproduction of adenosince triphosphate (ATP), the body's co-called 'energy currency'.
Various studies support the benefits of CoQ10 for athletes and athletic performance. Japanese researchers reported in 2008, for example, that CoQ10 possessed anti-fatigue effects. Both fatigue and recovery time were decreased as a result of 300 milligrams of CoQ10 for eight days (Nutrition, Vol. 24, pp.293-299).
Carnitine
Another established ingredient is L-carnitine, a compound reported to play a critical role in fat and energy metabolism. L-carnitine is involved in the transport of long-chain fatty acids into the mitochondria where they are metabolized for energy.
University of Connecticut scientists reported in the Journal of Strength and Conditioning Research (2007, Vol. 21, pp. 259-264),for example, that supplements of L-carnitine L- tartrate (Carnipure, Lonza) may reduce markers of oxidative stress and improving recovery at a one gram doses for eight weeks.
Carnosine
Not to be confused with carnitine, L-carnosine and its precursor beta-alanine are popular sports supplements. According to Dr Matti Tolonen, Docent of Occupational Health at the Institute of Public Health,...
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