Eating fish at lunch reduced food intake at dinner in normal-weight men by 11%

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Thursday, September 16, 2010 6:58 am Email this article
"Previous studies have indicated that fish protein may have a greater effect on satiety compared to other protein sources of animal origin," the paper begins. And their study proved it, at least in normal-weight men.

Men who were given fish at lunch at 11 percent fewer calories at dinner than men who were given beef according to a study from researchers at the Karolinska Institute in Stockholm, Sweden. Subjects

Subjects : 23 normal-weight men, 20-32 years-old

The study involved 23 normal, non-smoking, healthy males who were 20- 32-years-old with an average body mass index (BMI) of 22.5, which is pretty lean.

 

Diet

Diet : A lunch containing 40% protein of either fish or beef, one week apart

The men were given a standard breakfast on the day of the study, followed by a lunch containing 40 percent protein as either fish.

One week later, they were fed lunch containing 40 percent protein as beef.

 

Calorie Intake At Dinner

11% fewer calorie eaten at dinner less following fish for lunch vs beef

The men ate 11 percent fewer calories at dinner after eating fish for lunch compared to beef—661 calories versus 736 calories.

 

Conclusion

Conclusion : No differences in satiety or hunger detected, but they ate 11% fewer calories at the next meal

“Although no significant differences… in satiety or hunger were detected, subjects displayed an 11% reduction in energy intake at the subsequent evening meal,” the authors concluded.

 

Previous Studies

Previous studies found fish eaters weight less than meat eaters

Previous studies have found that fish or fish oil are associated with lower body weight.

 

Fish-eaters weigh 7 lbs less

Fish-eaters weight 7 lbs less than meat-eaters

A study from Britain found that fish-eaters weigh 7 pounds less than meat-eaters.

 

Fish or Fish Oil Increase Weight Loss

Fish or fish oil capsules increased weight loss by 2-3 lbs in one month

Another study found that fish or fish oil capsules increased weight loss in men by 2-3 pounds in one month.

 

Fish Oil Capsules Increase Weight Loss

8 fish oil capsules increased weight loss by 1.2 pounds in 3 weeks

Another study found that people given 8 capsules of fish oil per day lost an additional 1.2 pounds in three weeks compared to when they were not given fish oil.

 

Fish Oil Reduces Obesity in Mice

Fish oil increased the burning of fat and reduced obesity in mice

A study in mice found that omega-3 fatty acids found in fish oil increased the burning of fat and reduced obesity.

 

Fish Oil Reduces Body Fat in Mice

Fish oil reduces the accumulation of body fat in mice

Another mouse study found that fish oil reduced the accumulation of body fat.

 

Fish Reduces Heart Attacks

8 ounces of fish per week reduces the risk of dying from a heart attack in men by 44%

A 30 year study found that eating 8 ounces of fish per week reduces the risk of dying of a heart attack in men by 44 percent.

 

Interview with Omega-3 Expert

Interview with omega-3 expert, Dr. Artemis Simopoulos

I also encourage everyone to read the interview with the wonderful Artemis Simopoulos, MD, an expert on omega-3 fatty acids and the author of The Omega Diet.

REFERENCE

Borzoei S, Neovius M, Barkeling B, Teixeira-Pinto A, Rossner S. A comparison of effects of fish and beef protein on satiety in normal weight men. Eur J Clin Nutr. 2006 Jul, 60(7):897-902.

AUTHOR’S CONTACT INFORMATION

Dr. M. Neovius
Department of Public Health Sciences
Karolinska Institute
Karolinska University Hospital (Norrbacka)
Stockholm SE-17176, Sweden
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Articles on the same subject can be found here:

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• Protein Source