Secoisolariciresinol diglucoside (SDG) is a type of lignan predominantly found in flaxseeds and other seeds, grains, and vegetables. Lignans are phytoestrogens, plant compounds with a chemical structure similar to estrogen, and secoisolariciresinol diglucoside (SDG) is known for its potential health benefits. Once ingested, secoisolariciresinol diglucoside is converted by gut bacteria into enterolignans, which are thought to have various health-promoting properties. These include potential anti-inflammatory, antioxidant, and anticancer effects. The estrogen-like activity of secoisolariciresinol diglucoside has sparked interest in its potential role in hormone-related conditions, such as breast and prostate cancer, and its ability to alleviate menopausal symptoms.
Additionally, Secoisolariciresinol diglucoside (SDG) might contribute to cardiovascular health by influencing blood lipid levels and providing anti-atherosclerotic effects. Despite these potential benefits, research is ongoing to fully understand the extent and mechanisms of secoisolariciresinol diglucoside’s impact on human health. As with other phytoestrogens, the effects of secoisolariciresinol diglucoside can vary based on individual factors like gut microbiota composition and overall health status.