Does psyllium improve cardiovascular measures?

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    Last Updated: April 23, 2025

    Psyllium fiber may modestly reduce LDL cholesterol and potentially lower blood pressure, triglycerides, and total cholesterol, but the effects are inconsistent and can vary based on dosage, duration, and individual health conditions. Some studies suggest that psyllium is more effective when combined with other dietary interventions.

    Psyllium fiber when used alone or along with other clinical interventions may modestly reduce LDL cholesterol. There is a wide variation in the dosage and durations used, with clinical studies ranging from 2.4–20.4 grams per day over 2–52 weeks.[1][2][3][4][5][6][7][8]

    Psyllium may reduce blood pressure (7–12 grams per day, over 6–8 weeks), triglycerides, and total cholesterol (3–20.4 grams per day, for more than 2 weeks) as well, but the effects are much less consistent.[2][9][5][10][8] However, other studies on these cardiovascular outcomes suggest psyllium is ineffective[1][7][11][12] or more effective as part of another dietary intervention, such as increased protein intake or a healthier diet overall.[13][14][15][16][17] The effectiveness may also vary depending on dose, duration, and participant characteristics (e.g., no apparent health conditions vs. prior health conditions at baseline).

    Does psyllium improve cardiovascular measures? - Examine