Whey Protein for Weight Loss

   A new study shows that Whey, or milk, protein may offer obese people who want to decrease their weight  a new method

Researchers at the U.S. Department of Agriculture's Human Nutrition Research Center chose in a random way 90 overweight and obese middle-aged adults and divided them to three groups . The first group took protein drinks made with whey to their normal diets, the second group drank protein drinks made with soy protein, while the third one took carbohydrate drinks.

The participants weren't told which group they had been assigned to.  All the drinks,  were drunk twice daily,once at breakfast and  the other  time  at dinner, and they all had the same number of calories: which was 200 kcal. They also all had had 52 grams per packet, for a daily total of 104 grams of added protein or carbs.

physical activities of participants, their weights, waist sizes, lean and fat body mass, and blood levels of hormones related to hunger and metabolism were all tracked

 on keeping records of the other foods they were eating in the sme time.  participants were having to drink the shakes during random urine tests for levels of a chemical tracer they had added to the powders.

37 people completed the study, which is published in the Journal of Nutrition.
Whey Protein vs. Soy Protein

Wat the start of test there were no significant differences between groups,  as said in researchers report.
Men weight was at average of 218 pounds, while women weight was at an average of about 190 pounds.

Throughout the study, all the groups ate roughly the same number of average daily calories, about 2,200.

Later after 6 months, people of the third group who were drinking the carbohydrate shakes had gained a little bit of weight, about 2 pounds, were mainly added  as fat, compared to their start.

People of te second group who were drinking the soy shakes had stayed about the same weight as befor rsearch.
no wheight gain or weight loss

According to the first group which includes people drinking the whey protein  they had shown they had lost a little bit of weight and body fat, about 2 pounds. they protein group lost about an inch around the middle,while the other groups saw little change increasing in the size of their waists

The dairy industry  has partially funded the study .

According to Researchershere they declares that there are two  things may help to explain the effect seen with whey protein on weight and fat loss.

Whey protein group People  had obvious lower blood levels of the hormone called (ghrelin) than people eating the soy protein or others eating carbohydrate.

"It's a hormone that helps regulate food intake," says David J. Baer, PhD, research physiologist at the USDA's agriculture research service in Beltsville, Md. "So the higher concentration, the more hungry somebody feels. The lower concentration, the fuller somebody feels."
That means the in increase the level of ghrelin hormon in blood increase the hunger sensation and subsequently food intake increses
But researchers indeed can't explain why this happened or what it means, they found that people drinking the whey protein had ecrease their carbohydrate intake by the end of the study, although they weren't eating fewer total calories and didn't know what kind of supplement they were getting.

While people was drinking soy protein saw little change in their weight and body composition during the study, they had higher levels of thyroid hormones in comparison to those drinking whey. Thyroid hormones control metabolism and higher levels may indicate a metabolic boost, though more research is needed to fully explain what that may mean for weight loss.

Researchers  recommend that people who are looking forward to repeating the results at home, whey product should to be  also low in calories and fat.