What we've found so far is that the evidence we've reviewed leans toward GLS combined with lifestyle changes having a greater effect on lowering triglycerides and cholesterol than polyene phosphatidylcholine in adults with nonalcoholic fatty liver disease [1]. Our analysis of the available research is based on one assertion drawn from 63.0 supporting studies, with no studies refuting this effect.
We looked at the data and found that when adults with fatty liver disease take a supplement called GLS for 12 weeks—along with making healthy lifestyle changes like improving diet and increasing physical activity—there may be a greater reduction in blood fats and bad cholesterol compared to those using polyene phosphatidylcholine [1]. These improvements could be meaningful for heart health, since high triglycerides and cholesterol are linked to increased cardiovascular risk.
However, we want to be clear: this is what the current evidence we’ve reviewed suggests. We are not saying this is definite or proven. We are also not comparing all possible treatments or long-term outcomes. Our analysis only reflects what has been reported in the studies we’ve examined so far.
There is no conflicting evidence in our current dataset—zero studies refute this pattern—but we remain cautious. More data could change how we understand these results over time. We also don’t have enough detail from the evidence provided to assess side effects, cost, or ease of use between the two approaches.
Practical takeaway: If you have nonalcoholic fatty liver disease and are looking to improve your cholesterol and triglyceride levels, adding GLS to healthy lifestyle changes might offer extra benefits compared to polyene phosphatidylcholine, based on what we’ve seen so far. But always talk to your healthcare provider before starting any new supplement.
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