Evidence supporting the use of: Soybean
For the health condition: PMS (general)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Soybean has been studied for its potential effects on premenstrual syndrome (PMS) primarily due to its content of phytoestrogens, specifically isoflavones such as genistein and daidzein. These compounds are structurally similar to human estrogen and can exert mild estrogenic or anti-estrogenic effects in the body. Since PMS symptoms are closely associated with fluctuations in estrogen and progesterone levels during the menstrual cycle, it has been hypothesized that phytoestrogens could help modulate hormonal balance and alleviate PMS symptoms such as mood swings, breast tenderness, and bloating.

Some clinical studies have investigated the effects of soy isoflavones on PMS symptoms, but results are mixed and generally modest. A few small randomized controlled trials have suggested a reduction in certain symptoms like mood disturbances and physical discomfort after several months of daily soy isoflavone supplementation. However, other studies have found little to no effect compared to placebo. Systematic reviews conclude that, while soy may offer minor benefits, the evidence is not strong or consistent enough to recommend its use as a primary treatment for PMS.

Overall, the use of soybean for PMS is scientifically motivated, but the current evidence is limited and not robust. Soy is widely consumed as a food and is generally considered safe, but those seeking significant relief from PMS symptoms may not find soy products or supplements reliably effective based on current research.

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