Psyllium husk can cause nutrient malabsorption
8.0Strong
evidence
evidence
The Claim
There is a belief that the consumption of psyllium husk can lead to the malabsorption of nutrients, as the fiber might bind to vitamins and minerals.
Origin
This myth likely arises from concerns about fiber’s effect on nutrient absorption, a topic discussed in both scientific literature and popular media.
What Science Says
Current studies suggest that while psyllium husk does add bulk to the digestive tract, it does not significantly interfere with the absorption of nutrients in healthy individuals when consumed as part of a balanced diet. A few studies have explored this, generally indicating no significant impact on the absorption of key nutrients like calcium and iron.
Verdict
False
Sources
- PMID:2827455 Three-week psyllium-husk supplementation: effect on plasma cholesterol concentrations, fecal steroid excretion, and carbohydrate absorption in men.
- PMID:25892792 Rheology, fatty acid profile and quality characteristics of nutrient enriched pizza base.
- PMID:19102405 Effect of gelatinization on gastric emptying and absorption.