scholarly journals Protein Supplements and Their Relation with Nutrition, Microbiota Composition and Health: Is More Protein Always Better for Sportspeople?

Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 829 ◽  
Author(s):  
Anna Kårlund ◽  
Carlos Gómez-Gallego ◽  
Anu M. Turpeinen ◽  
Outi-Maaria Palo-oja ◽  
Hani El-Nezami ◽  
...  
Keyword(s):  
Amino Acid ◽  
Muscle Growth ◽  
High Protein ◽  
Metabolic Effects ◽  
Amino Acid Supplementation ◽  
Protein Supplements ◽  
Protein Requirements ◽  
Low Protein ◽  
The Impact ◽  
Protein Diets

Sports nutrition products are developed and targeted mainly for athletes to improve their nutrient intake, performance, and muscle growth. The fastest growing consumer groups for these products are recreational sportspeople and lifestyle users. Although athletes may have elevated physiological protein requirements and they may benefit from dietary supplements, the evidence regarding the role of dietary protein and supplements in the nutrition of recreational sportspeople and sedentary populations is somewhat complex and contradictory. In high-protein diets, more undigested protein-derived constituents end up in the large intestine compared to moderate or low-protein diets, and hence, more bacterial amino acid metabolism takes place in the colon, having both positive and negative systemic and metabolic effects on the host. The aim of the present review is to summarize the impact of the high-protein products and diets on nutrition and health, in sportspeople and in sedentary consumers. We are opening the debate about the current protein intake recommendations, with an emphasis on evidence-based effects on intestinal microbiota and personalized guidelines regarding protein and amino acid supplementation in sportspeople and lifestyle consumers.

Feeding increased ratios of ileal digestible methionine to lysine on the performance of lean genotype pigs between 25 and 50 kg liveweight given low protein diets

1995 ◽  
Vol 1995 ◽  
pp. 173-173
Author(s):  
J. P. Braund ◽  
P. H. Simmins ◽  
J. Weigel ◽  
R. Maillard
Keyword(s):  
Amino Acid ◽  
Accurate Information ◽  
Amino Acid Supplementation ◽  
Maximal Growth ◽  
Food Conversion ◽  
Optimal Production ◽  
Low Protein ◽  
Amino Acid Requirements ◽  
Protein Diets ◽  
Food Conversion Efficiency

Reducing the protein content of commercial diets in Europe would reduce environmental nitrogen pollution. It has been demonstrated that this could be achieved by employing crystalline amino acid supplementation (e.g. Chavel and Granier, 1994; Fuller et al, 1979a, b). Accurate information on the true ileal digestible amino acid requirements of the modern lean genotype pig is necessary in order to ensure optimal production at low protein intakes. The objective of this study was to identify the optimum ileal digestible methionine:lysine (met:lys) ratio to achieve maximal growth and food conversion efficiency of the lean genotype pig given low protein diets.

High protein wheats for poultry. 1. Use in broiler diets

1971 ◽  
Vol 11 (53) ◽  
pp. 619 ◽  
Author(s):  
W Turner ◽  
GG Payne
Keyword(s):  
Amino Acids ◽  
Growth Rate ◽  
Amino Acid ◽  
Crude Protein ◽  
Maximum Level ◽  
Essential Amino Acids ◽  
High Protein ◽  
Amino Acid Supplementation ◽  
Dietary Factor ◽  
Protein Diets

High protein wheat was the sole cereal in 20 and 25 per cent crude protein broiler starter diets. On the. 25 per cent protein diet, performance was maximized without amino acid supplementation. Using high protein wheat in 20 per cent protein diets, growth rate was improved by l-lysine supplementation of 0.3 per cent. However, this growth rate was not at a maximum level. Some other dietary factor was necessary, and this did not appear to be essential amino acids, singly or in combination.

scholarly journals Impact of Protein Diet Supplements on Athletes

2021 ◽  
Vol 6 (2) ◽  
pp. 1-3
Author(s):  
Mohammad Athar
Keyword(s):  
Muscle Growth ◽  
The Body ◽  
Protein Diet ◽  
Negative Effects ◽  
Protein Supplements ◽  
Diet Supplements ◽  
Negative Effect ◽  
The Impact ◽  
Protein Diets ◽  
Day By Day

Protein supplements are one of the most commonly consumed nutritional supplements, whether by professional athletes or amateurs, even by those who use them for aesthetic purposes instead of sporting ones. The thirst for becoming better is increasing day by day and so is the quest for competition. Sports have been one of the greatest of platforms to showcase one’s talent, thus leading to constant hustle for getting better day by day. To improve the performance, diet and physical appearance of the body i.e. muscle growth of athletes, sports nutrient products are developed. The use of these protein supplements in diet has increased the physiological requirement of protein but whether the use of these supplements is having positive or negative effect on the host is still a topic of debate for many. Large amount of protein derived constituents end up in the large intestine in case of high protein diets as compared to medium or low protein diets, leading to more bacterial amino acid metabolism in colon having positive as well as negative effects on the host. We, here, will try to summarize the impact of protein diet supplements on athletes.

scholarly journals Commercially available amino acid supplementation of low-protein diets for broiler chickens with different ratios of digestible glycine+serine:lysine

2012 ◽  
Vol 91 (12) ◽  
pp. 3148-3155 ◽  
Author(s):  
I.C. Ospina-Rojas ◽  
A.E. Murakami ◽  
C. Eyng ◽  
R.V. Nunes ◽  
C.R.A. Duarte ◽  
...  
Keyword(s):  
Amino Acid ◽  
Broiler Chickens ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Low Protein ◽  
Protein Diets

scholarly journals Progress of amino acid nutrition for diet protein reduction in poultry

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
M. T. Kidd ◽  
C. W. Maynard ◽  
G. J. Mullenix
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Broiler Chickens ◽  
Isoleucine Leucine ◽  
Practical Applications ◽  
Research Areas ◽  
Low Protein ◽  
Protein Reduction ◽  
The Impact ◽  
Protein Diets

AbstractThere is growing interest among nutritionists in feeding reduced protein diets to broiler chickens. Although nearly a century of research has been conducted providing biochemical insights on the impact of reduced protein diets for broilers, practical limitation still exists. The present review was written to provide insights on further reducing dietary protein in broilers. To construct this review, eighty-nine peer reviewed manuscripts in the area of amino acid nutrition in poultry were critiqued. Hence, nutritional research areas of low protein diets, threonine, glycine, valine, isoleucine, leucine, phenylalanine, histidine, and glutamine have been assessed and combined in this text, thus providing concepts into reduced protein diets for broilers. In addition, linkages between the cited work and least cost formation ingredient and nutrient matrix considerations are provided. In conclusion, practical applications in feeding reduced protein diets to broilers are advancing, but more work is warranted.

scholarly journals Effect of Low Protein Diets with Amino Acid Supplementation on Broiler Growth

2001 ◽  
Vol 10 (4) ◽  
pp. 354-362 ◽  
Author(s):  
A.S. Hussein ◽  
A.H. Cantor ◽  
A.J. Pescatore ◽  
R.S. Gates ◽  
D. Burnham ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Supplementation ◽  
Acid Supplementation ◽  
Low Protein ◽  
Protein Diets
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