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Limited evidenceGut health

Lipase

The fat-splitting enzyme sold to make heavy meals more comfortable. Two small crossover trials in healthy people found measurable effects, which is a thin base for such a widely sold product.

Evidence last reviewed: August 2026

What the science says

  • Fullness after a fatty meal Limited evidence

    In a crossover study in healthy volunteers, lipase taken before a high-fat meal reduced sensations of fullness and bloating. The study was small and measured perceptions rather than actual digestion.

  • Nutrient handling after a meal Limited evidence

    A randomized, double-blind, placebo-controlled crossover trial found an oral multienzyme supplement altered postprandial plasma nutrient concentrations in healthy middle-aged and older adults. Whether that produces any symptom benefit was not established.

Dosage & safety

Studied doseSupplements typically supply 5,000–20,000 lipase units per capsule taken with meals. The fullness study used a single dose immediately before a high-fat meal.
SafetyGenerally well tolerated. Porcine-derived forms carry the same considerations as pancreatin, while fungal and plant lipases are alternatives for those avoiding animal products. Ongoing fat malabsorption, greasy stools or weight loss should be investigated medically rather than self-treated.

Scientific references

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