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27.08.2014


A year on a high-protein slimming diet benefits cardiovascular system

A year on a high-protein slimming diet is good for cardiovascular system
A protein rich weight-loss diet, in which thirty percent of the energy is derived from proteins, works better than a traditional slimming diet, in which proteins make up only twenty percent of the energy provision. Moreover, a high-protein diet is just as good for your cardiovascular system as a traditional weight-loss diet - even if you stay on it for a year. Australian researchers at the University of South Australia drew this conclusion from a human study involving 68 heavily overweight men.

Protein-rich weight loss
It's pretty much generally agreed that you lose weight faster the more protein you consume, and that this kind of diet also helps retain muscle mass. It's not yet completely clear though whether there are long-term negative health effects of a high-protein diet.


A year on a high-protein slimming diet is good for cardiovascular system


Experimental setup
In the study, which the Australians published in Nutrition & Diabetes, obese men (average age 50) were put on a diet of 1700 kcal daily for a year. As a result of this they lost weight gradually.

Half of the men were given a traditional diet: 20 percent of the energy was derived from protein and 50 percent from carbohydrates. [HC] The other half of the men were put on a high-protein weight-loss diet. [HP] The energy in this diet was derived for 30 percent from protein, and 35 percent from carbohydrates.


A year on a high-protein slimming diet is good for cardiovascular system


A year on a high-protein slimming diet is good for cardiovascular system


Body composition
Both groups lost about the same amount of weight in the year that the experiment lasted. But the men who had been on the high-protein diet lost more body fat and retained more lean body mass – and, yes, the differences were statistically significant.


A year on a high-protein slimming diet is good for cardiovascular system


The men in both groups became healthier. Their blood pressure went down, their cholesterol levels improved, their blood sugar and insulin levels went down, as did the amounts of triglycerides and CRP in their blood.


A year on a high-protein slimming diet is good for cardiovascular system


A year on a high-protein slimming diet is good for cardiovascular system


Conclusion
"In conclusion, in overweight and obese men both a high protein and high carbohydrate diet reduced body weight and improved cardiometabolic risk factors", the researchers write. "Consumption of a high protein diet was more effective for improving body composition compared with an high carbohydrate diet."

Source:
Nutr Diabetes. 2012 Aug 13;2:e40.

More:
The best high-protein slimming diet contains lots of taurine and glycine 13.04.2014
Protein-rich slimming diet works even better with six meals a day 31.07.2013
Slimming goes better with proteins than with fibre 24.01.2012

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In combination with protein supplementation, this comprehensive training approach has more effect on body composition than just strength training Protein shake before exercise increases fat oxidation This is how exercise and protein reinforce each other's effect on fat percentage and muscle

In combination with protein supplementation, this comprehensive training approach has more effect on body composition than just strength training
Protein supplementation makes fat and sedentary people slimmer and healthier, and physical training enhances these effects. A diversified and comprehensive training program works better than a program with only strength training and interval training.

Protein shake before exercise increases fat oxidation
If you want to lose weight by exercising more, take proteins, rather than carbohydrates, and preferably slow-absorbing proteins, such as casein, just before your workout starts.

This is how exercise and protein reinforce each other's effect on fat percentage and muscle
American nutritionists published a study in the Journal of the Academy of Nutrition and Dietetics which shows exactly how much effect protein consumption and physical exercise have.