Starches, Sugars and Related Factors Affecting Liver Fat and Nitrogen Balances in Adult Rats Fed Low Levels of Amino Acids

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Abstract
Liver fat was reduced and negative nitrogen balances were decreased in adult protein-depleted rats fed extra threonine, corn, rice or wheat starch, or corn dextrin, when compared with the levels found for animals fed diets containing sucrose and low levels of amino acids. The results were not influenced by the type of carbohydrate fed during protein depletion. Substitution of potato starch or glucose for sucrose reduced liver fat but did not improve nitrogen balances. The addition of niacin, methionine, cellu flour or sulfasuxidine, or substitution of fructose for sucrose did not change liver fat values or nitrogen balances from those obtained with sucrose. Doubling the essential amino acid intake of animals receiving sucrose, glucose or fructose reduced liver fat to normal or near normal values.