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Cocoa feeding and human lactose intolerance.

C M Lee¹, C M Hardy

¹Department of Food Science and Nutrition, University of Rhode Island, Kingston 02881.

The American Journal of Clinical Nutrition

|May 1, 1989

Summary

Cocoa significantly reduces symptoms of lactose intolerance, including bloating and cramping. This study found that adding cocoa to milk formulas effectively lowered breath hydrogen levels, indicating improved lactose digestion.

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Area of Science:

Nutrition Science
Gastroenterology
Food Science

Background:

Lactose intolerance affects a significant portion of the global population.
Previous research suggests cocoa may have a suppressive effect on lactose intolerance.

Purpose of the Study:

To investigate the impact of cocoa on human lactose intolerance.
To quantify the effect of cocoa on breath hydrogen level (BHL), symptoms, and onset time.

Main Methods:

A feeding study involving 35 subjects consuming a commercial chocolate-milk formula.
Measurement of breath hydrogen level (BHL), symptom scores (bloating, cramping), and onset time.
Statistical analysis using paired t tests to compare plain and cocoa formulas.

Main Results:

Cocoa addition significantly reduced BHL (p < 0.005) and symptom scores for bloating (p < 0.05) and cramping (p < 0.025).
The suppressive effect of cocoa was independent of sucrose and carrageenan.
95% of subjects responded positively to plain formula, while only 51% responded positively to cocoa formula.

Conclusions:

Cocoa demonstrates a significant suppressive effect on lactose intolerance.
Chocolate milk formulas may offer a palatable solution for individuals with lactose intolerance.
Further research could explore the specific mechanisms behind cocoa's effect on lactose digestion.

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