Evidence supporting the use of: Black Psyllium
For the health condition: Weight Loss

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Synopsis

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

Black psyllium (Plantago indica/ovata) is a source of soluble fiber, similar to white psyllium (Plantago ovata), and is sometimes used as a dietary supplement to support weight loss. The scientific rationale for its use is based on its high fiber content, which can increase satiety, slow gastric emptying, and reduce overall calorie intake by promoting feelings of fullness. Several clinical studies on psyllium (though mostly with white psyllium) have shown modest reductions in body weight and BMI in overweight and obese individuals, particularly when used as part of a calorie-restricted diet. The proposed mechanisms include delayed gastric emptying, reduced hunger, and improved glycemic control, which may indirectly support weight loss efforts.

However, direct evidence specifically for black psyllium is limited, and most research has not differentiated between black and white psyllium sources. Systematic reviews and meta-analyses have concluded that while psyllium fiber supplementation can have a small positive effect on weight reduction, the magnitude of the effect is modest, and results can vary depending on dosage, study duration, and concurrent lifestyle interventions. Therefore, while the use of black psyllium for weight loss does have a scientific basis due to its fiber content and physiological effects, the overall strength of evidence is rated as low to moderate (2 out of 5), and it should not be considered a primary intervention for weight loss, but rather a supportive adjunct within a broader dietary and lifestyle plan.

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