A study published in the August 2010 edition of the American Journal of Clinical Nutrition has linked meat and poultry consumption with weight gain.
Researchers followed 374,000 European men and women between 25-70 years old for 5 years, recording total meat, red meat, poultry and processed meat and weight gain. Potential confounding factors such as age and physical activity were also studied so as not to confuse the study results.
Total meat, red meat, poultry and processed meat consumption was linked with weight gain in men and women who were both overweight and normal weight. In fact, researchers found an increase in meat intake of 250 grams/day (one steak at 450 kcal) would lead to a 2-kg (4 pounds) increase in weight gain over 5 years, even when total calories stayed the same.
In the words of the researchers: "Our results suggest that a decrease in meat consumption may improve weight management".