Weight Maintenance & Supplementation
Weight Loss Study Aim
To investigate whether supplementation of carbohydrate, chromium, dietary
fiber and caffeine is effective for maintenance of weight-loss in the
long-term.
Weight Loss Study Design
A longitudinal, double-blind, randomly assigned intervention study of
16 months with supplementation of either 50g of carbohydrates (CHO), 200
micrograms chromium-picolinate (Cr-Pic), 20g of soluble fiber plus 100
mg caffeine (CHO+) or 50g of plain CHO, for 16 months besides a very low
energy diet (VLED) during the first two months. Thirty-three female obese
subjects participated, 13 subjects were supplemented with CHO+, 11 subjects
were supplemented with CHO and 9 subjects served as a control group. SW,
body composition, energy intake and blood parameters were measured before
the VLED, after the VLED at 2 months, and at 4, 10 and 16 months.
Weight Loss Study Results
The amount and course of relapse of body weight was equal for the supplemented
and control groups. The average regain at 16 months (the weight gained
as a percentage of the total weight loss during the VLED) was 66.1 +/-
81.2 percent, and was not different between the groups. No differences
in body composition were found between the groups at 16 months. The CHO
supplements resulted in significantly elevated energy percentage intake
of CHO daily, in both supplemented groups, although this did not result
in less regain. Pearson correlation analysis for all subjects revealed
that the more fat consumed, the more regain was found at 16 months. A
high CHO consumption was correlated with less regain. Furthermore, chromium
intake did not result in significant changes in blood parameters and body
composition.
Weight Loss Study Conclusion
Although additional supplementation of CHO, chromium, dietary fibre and
caffeine intake did not affect body weight, the En percent CHO daily was
increased significantly. Our results indicate that a high En percent intake
of CHO and a low En percent intake of fat daily is beneficial for prevention
of weight regain.
Source: Pasman WJ, Westerterp-Plantenga
MS, Saris WH. Department of Human Biology, Maastricht University, The
Netherlands. 1997
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