title: Utilization of different quantities of fat at high altitude.
abstract: Investigations on utilization of fats have been carried out at altitudes of 3,500, 3,800, and 4,700 m, respectively, on 27, 7, and 12 soldiers staying at these altitudes for over 4 months in tentage accommodation. At 3,500 m the fat utilization was 95.9, 96.2, and 96.6% on intakes of 128, 168, and 198 g fat/day. At 3,800 m on maximum fat intake of 364 g/day, the fecal fat content was 11.48 g and percentage digestibility 96.9. At 4,700 m the digestibility was 97.5% on a fat intake of 232 g/day. Urine examination did not reveal ketone bodies on any of these fat intakes. Neither was there any incidence of constipation nor diarrhea. While 364 g of fat/day could not be fully consumed, digestibilty was not affected up to an intake of 324 g/day though, at this intake there was feeling of thirst at night. Thus, digestibility and utilization of dietary fats up to 324 g at 3,800 m and 232 g at 4,700 m are not distrubed.
mesh_terms: D000328:Adult; D000531:Altitude; D001835:Body Weight; D002079:Butter; D004041:Dietary Fats / Q000008:administration & dosage* / Q000009:adverse effects; D004063:Digestion; D005243:Feces / Q000032:analysis; D006801:Humans; D007657:Ketone Bodies / Q000652:urine; D050356:Lipid Metabolism; D008297:Male; D008887:Military Medicine; D009747:Nutritional Physiological Phenomena; D009821:Oils / Q000008:administration & dosage; D013997:Time Factors
chemical_list: D004041:Dietary Fats; D007657:Ketone Bodies; D009821:Oils; D002079:Butter