Abstract
In bariatric practice, a preoperative weight loss of at least 5% is recommended. However, the hypocaloric diets prescribed vary and no consensus exists. This study examined the efficacy of preoperative diets in achieving 5% weight loss. From a systematic literature search, eight randomised controlled trials (n = 862) were identified. Half of the trials used a “very-low-calorie diet” whilst the rest employed a “low-calorie diet”. Only five diets achieved ≥ 5% weight loss over varying durations and energy intakes. By inference, compliance with a 700–1050 kcal (2929–4393 kJ) diet, consisting of moderate carbohydrate, high protein and low/moderate fat, for 3 weeks is likely to achieve 5% weight loss. A low-carbohydrate diet (< 20 g/day) may achieve this target within a shorter duration. Additional research is required to validate these conclusions.
Original language | English |
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Pages (from-to) | 3678-3690 |
Number of pages | 13 |
Journal | Obesity Surgery |
Volume | 28 |
Issue number | 11 |
Early online date | 18 Aug 2018 |
DOIs | |
Publication status | Published (in print/issue) - 30 Nov 2018 |
Keywords
- Obesity
- Bariatric surgery
- Metabolic surgery
- Low-calorie diet
- Very-low-calorie diet
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Ruth Price
- School of Biomedical Sciences - Research Fellow
- Faculty Of Life & Health Sciences - Research Associate
Person: Academic