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Effect of different protein sources on satiation and short-term satiety when consumed as a starter
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Effect of different protein sources on satiation and short-term satiety when consumed as a starter
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Journal Article
Effect of different protein sources on satiation and short-term satiety when consumed as a starter
2011
Overview
Background
Because the source of protein may play a role in its satiating effect, we investigated the effect of different proteins on satiation and short-term satiety.
Methods
Two randomized single-blind cross-over studies were completed. In the first study, we investigated the effect of a preload containing 20 g of casein, whey, pea protein, egg albumin or maltodextrin vs. water control on food intake 30 min later in 32 male volunteers (25 ± 4 yrs, BMI 24 ± 0.4 kg/m
2
). Subjective appetite was assessed using visual analogue scales at 10 min intervals after the preload. Capillary blood glucose was measured every 30 min during 2 hrs before and after the ad libitum meal. In the second study, we compared the effect of 20 g of casein, pea protein or whey vs. water control on satiation in 32 male volunteers (25 ± 0.6 yrs, BMI 24 ± 0.5 kg/m
2
). The preload was consumed as a starter during an ad libitum meal and food intake was measured. The preloads in both studies were in the form of a beverage.
Results
In the first study, food intake was significantly lower only after casein and pea protein compared to water control (P = 0.02; 0.04 respectively). Caloric compensation was 110, 103, 62, 56 and 51% after casein, pea protein, whey, albumin and maltodextrin, respectively. Feelings of satiety were significantly higher after casein and pea protein compared to other preloads (P < 0.05). Blood glucose response to the meal was significantly lower when whey protein was consumed as a preload compared to other groups (P < 0.001). In the second study, results showed no difference between preloads on ad libitum intake. Total intake was significantly higher after caloric preloads compared to water control (P < 0.05).
Conclusion
Casein and pea protein showed a stronger effect on food intake compared to whey when consumed as a preload. However, consuming the protein preload as a starter of a meal decreased its impact on food intake as opposed to consuming it 30 min before the meal.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Adult
/ albumins
/ analysis
/ appetite
/ Blood
/ Casein
/ Caseins
/ Caseins - administration & dosage
/ Dietary Proteins - administration & dosage
/ Eating
/ Eggs
/ Food
/ Health Promotion and Disease Prevention
/ Humans
/ Male
/ Medicine
/ Milk Proteins - administration & dosage
/ Ovalbumin - administration & dosage
/ Peas
/ Plant Proteins - administration & dosage
/ Polysaccharides - administration & dosage
/ Proteins
/ satiety
/ whey
