Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Flaxseed protein is derived from flaxseed, which is a rich source of alpha-linolenic acid (ALA), dietary fiber, and plant lignans. While much of the research on flaxseed and lipid profiles has focused on whole flaxseed or flaxseed oil, emerging evidence suggests that flaxseed protein itself may have beneficial effects on blood lipid levels, including triglycerides. Several animal and human studies have indicated that consumption of flaxseed protein can help lower serum triglyceride concentrations. The mechanisms are thought to involve improved lipid metabolism, possibly due to the presence of bioactive peptides produced during digestion, as well as synergistic effects with other flaxseed components such as fiber and ALA.

For example, a randomized controlled trial published in "Nutrition Journal" (2016) found that supplementation with flaxseed protein led to a significant reduction in triglyceride levels compared to control in overweight and obese adults. Other studies have shown that flaxseed protein may also positively influence other cardiovascular risk factors. However, the number of well-designed human clinical trials focusing specifically on isolated flaxseed protein (as opposed to whole flaxseed or flaxseed oil) remains limited. Therefore, while there is moderate scientific support for the use of flaxseed protein in managing high triglycerides, the overall evidence base is not as robust as for some other interventions. More large-scale, high-quality human studies are needed to confirm its efficacy and clarify the mechanisms involved.

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