The Claim
Cafestol is the primary compound responsible for the hyperlipidemic and hepatotoxic effects of unfiltered coffee, while kahweol contributes minimally to lipid elevation but significantly to elevation of liver enzymes; filtering coffee removes cafestol and thereby eliminates the primary risk compound.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Unfiltered coffee raises blood lipids and liver enzyme levels because of cafestol, a compound removed by coffee filters; kahweol contributes little to lipid increases but significantly to liver enzyme increases.
See the scientific wording
The hyperlipidemic and hepatotoxic effects of unfiltered coffee are primarily attributable to cafestol, with kahweol contributing minimally to lipid elevation but significantly to liver enzyme elevation, suggesting that filtering coffee removes the primary risk compound.
Cafestol blocks the liver from removing bad cholesterol from the blood, causing cholesterol to build up. It also damages liver cells, making them release enzymes into the blood. Kahweol does not raise cholesterol much but worsens liver cell damage. Filtering coffee removes cafestol, stopping both effects.
What the research says
1 studyThis study found that cafestol in unfiltered coffee is the main culprit for raising cholesterol, while kahweol adds little to cholesterol but makes liver enzymes spike more. Filtering coffee removes cafestol, which is why filtered coffee is safer for your cholesterol and liver.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.