Effect on Body Composition of a Meal-Replacement Progression Diet in Patients 1 Month after Bariatric Surgery.
Study Goal
The researchers aimed to evaluate the effect of a normocaloric, hyperproteic oral nutritional supplement on body composition in patients after sleeve gastrectomy compared to a standard progression diet.
Results Summary
The study found that the hyperproteic supplement slowed muscle mass loss and increased fat mass loss without affecting total weight loss compared to the standard diet.
Population
Patients who underwent sleeve gastrectomy (mean age 47.35 years, 75% women, average presurgical BMI 45.98 kg/m²).
Effective Dosage
820 kcal, 65.5 g protein daily for the intervention group; 220 kcal, 11.5 g protein daily for the control group.
Duration
2 weeks post-surgery.
Interactions
None mentioned
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
a modified diet with an oral nutritional supplement that is hyperproteic and normocaloric | decrease | muscle mass | patients undergoing gastric sleeve surgery | - | managed to slow down the loss | #1 |
a modified diet with an oral nutritional supplement that is hyperproteic and normocaloric | increase | fat mass | patients undergoing gastric sleeve surgery | - | increase the loss | #2 |
a modified diet with an oral nutritional supplement that is hyperproteic and normocaloric | no change | total weight loss | patients undergoing gastric sleeve surgery | - | no differences | #3 |
BACKGROUND: Progression diets after bariatric surgery (BS) are restricted in calories and protein, and they may induce a worsening of body composition. The aim of this study was to evaluate the effect of a modified diet with an oral nutritional supplement that is hyperproteic and normocaloric over the body composition. METHODS: A two-arm ambispective observational cohort study was designed. Forty-four patients who underwent sleeve gastrectomy were included in the study. Thirty patients received a progression diet with a normocaloric, hyperproteic oral nutritional supplement during the first two weeks after surgery (820 kcal, 65.5 g protein). They were compared with a historical cohort of 14 patients treated with a standard progression diet (220 kcal, 11.5 g protein). Anthropometric and body composition (using electrical bioimpedanciometry) data were analyzed before BS and 1 month after the surgery. RESULTS: The mean age was 47.35(10.22) years; 75% were women, and the average presurgical body mass index (BMI) was 45.98(6.13) kg/m CONCLUSIONS: In patients undergoing gastric sleeve surgery, the addition of a normocaloric, hyperproteic formula managed to slow down the loss of muscle mass and increase the loss of fat mass with no differences on total weight loss.