MedicalResearch.com Interview with: Dr. Alex Johnstone PhD, Rowett Institute of Nutrition and Health, Aberdeen
Medical Research: What is the background for this study?
Response: Previous work has indicated that high-protein (30% of diet as protein) meat-based weight loss diets are highly satiating, and reduce the free food intake over a four-week period (1,2).
There is limited data on assessing the effect of different types of protein on appetite in weight loss studies (3). Previously, a mixed meat source of protein was used in our high protein diets, but this approach has been criticised both from a policy and public health perspective because of potential negative side effects, especially on gut health (4).
There is acceptance that vegetable based weight loss diet may offer protection from diseases (5).
It may be that alternative vegetable sources of protein could be satiating, and yet maintain a healthy gut during weight loss, and we set up a study to test this, using soya (plant) protein
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