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Inadequate dietary protein increases hunger and desire to eat in younger and older men.
- Source :
- Journal of Nutrition; Jun2007, Vol. 137 Issue 6, p1478-1482, 5p, 2 Charts, 1 Graph
- Publication Year :
- 2007
-
Abstract
- Many older people experience changes in appetite and consume marginal or inadequate dietary protein. This study was designed to examine the appetitive responses to habitual protein intakes that span the range of adequacy in younger and older men. Twenty-two men (12 younger, aged 21-43 y and 10 older, aged 63-79 y) completed, in random order, three 18-d trials that involved consumption of individualized, isoenergetic menus providing 1.00, 0.75, and 0.50 g protein . kg BW(-1). d(-1), which were 125% (trial P125), 94% (trial P94), and 63% (trial P63) of the Recommended Dietary Allowance for protein. Near the end of each trial, the subjects recorded appetitive sensations hourly throughout one day using a visual analogue scale. Independent of age, ratings of hunger were lower for P125 (1.3 +/- 0.5 cm) than P94 (1.8 +/- 0.8 cm) and P63 (1.8 +/- 0.6 cm) (P = 0.037), and desire to eat was lower during the P125 trial (1.4 +/- 0.5 cm), compared with the P63 trial (2.1 +/- 0.7 cm) (P = 0.003), and P94 (1.8 +/- 0.7 cm) was not different when compared with P63 and P125. Protein intake did not influence fullness. These results show that younger and older men who consume inadequate protein experience appetite changes that may promote increased food intake. [ABSTRACT FROM AUTHOR]
- Subjects :
- OLDER men
APPETITE
HUNGER
LOW-protein diet
DIET in disease
DIETARY proteins
NUTRITION & psychology
G proteins
MEMBRANE proteins
COMPARATIVE studies
CROSSOVER trials
DEMOGRAPHY
RESEARCH methodology
MEDICAL cooperation
RESEARCH
RESEARCH funding
STATISTICAL sampling
EVALUATION research
PAIN measurement
RANDOMIZED controlled trials
Subjects
Details
- Language :
- English
- ISSN :
- 00223166
- Volume :
- 137
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Journal of Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 25233298
- Full Text :
- https://doi.org/10.1093/jn/137.6.1478