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A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
Published on: September 20, 2019
A 20-month olestra feeding study in dogs
K W Miller1, F E Wood, S B Stuard
1Procter & Gamble Company, Cincinnati, OH 45224-1703.
Summary
Olestra, a sucrose ester fat substitute, showed no chronic toxicity in beagle dogs over a 20-month study. Dogs fed up to 10% olestra exhibited normal growth, survival, and no significant adverse health effects.
Area of Science:
- Toxicology
- Nutritional Science
- Gastroenterology
Background:
- Olestra is a fat substitute composed of sucrose esters with long-chain fatty acids.
- Assessing the chronic toxicity of novel food ingredients is crucial for public health and regulatory approval.
Purpose of the Study:
- To evaluate the long-term safety and potential chronic toxicity of olestra in a non-rodent mammalian model.
- To determine if olestra consumption impacts growth, physiological parameters, or causes histopathological changes in beagle dogs.
Main Methods:
- Beagle dogs (5/sex/group) were fed diets containing 0%, 5%, or 10% olestra for 20 months.
- Diets were supplemented with vitamins A and E to ensure nutritional adequacy.
- Hematological, serum biochemical, vitamin D, and vitamin K levels were monitored; comprehensive histopathology was performed.
Main Results:
- Survival rates were 100% across all groups; growth was not affected by olestra.
- Olestra-fed dogs consumed more feed to compensate for caloric dilution, but increases were not statistically significant.
- No biologically significant changes were observed in hematological, biochemical, or vitamin status; no olestra-related histopathological findings were noted.
Conclusions:
- Olestra was not toxic when administered to beagle dogs at dietary levels up to 10% for 20 months.
- Minor incidences of soft stools were observed, attributed to undigested olestra, but were not indicative of toxicity.
