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Evaluation of the influence of whole and defatted flaxseed on satiety, glucose, and leptin levels of women in the late postoperative stage of bariatric surgery. | LitMetric

AI Article Synopsis

  • The study investigated how whole and defatted flaxseed affected satiety, blood glucose, and leptin levels in women who had undergone Roux-en-Y gastric bypass surgery.
  • Eighteen participants consumed meals with whole flaxseed, defatted flaxseed, and a placebo, but no significant differences were found in hunger or fullness between the meals.
  • While neither type of flaxseed improved satiety, the defatted flaxseed led to a higher increase in postprandial leptin levels, which may help with appetite regulation.

Article Abstract

Background: Satiety decline is one of the factors that are involved in weight regain in the postoperative period of bariatric surgery. Nutrients such as long-chain n-3 polyunsaturated fatty acid and fibers could assist in food intake control by increasing satiety. Flaxseed is a source of these nutrients, and its consumption could help with possible glycemic control and increased satiety. The aim of this study was to evaluate the influence of whole flaxseed and defatted flaxseed on satiety, postprandial blood glucose, and leptin in post-bariatric women.

Methods: A single-blind crossover and randomized study was performed with 18 women in the late postoperative of Roux-en-Y gastric bypass (RYGBP). All women received three test meals containing whole flaxseed, defatted flaxseed, and placebo with 1 week of washout. Satiety was evaluated by a Visual Analog Scale during the fasting period; immediately after ingestion; and 60, 120, and 180 min after meals.

Results: There was no difference between test meals for the variables of hunger, satisfaction, fullness, and desire to eat. The basal and postprandial glucose and leptin levels did not differ between the test meals. The intake of defatted flaxseed and placebo muffins resulted in reduced postprandial blood glucose. Postprandial leptin was higher than the baseline (p = 0.02); however, only defatted flaxseed showed increased postprandial leptin levels (p = 0.044).

Conclusions: Whole flaxseed and defatted flaxseed did not promote satiety in women in the late postoperative of RYGBP. However, the test meals with a lower fat content increased the serum leptin levels.

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Source
http://dx.doi.org/10.1007/s11695-012-0733-xDOI Listing

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