Protein for Life: Review of Optimal Protein Intake, Sustainable Dietary Sources and the Effect on Appetite in Ageing Adults
Research snapshot:
2018 review study finds increased plant-based protein intake essential for muscle health in ageing adults.
2018 |
Review |
Protein |
Muscle health |
Overview.
The study reviews optimal protein intake, sustainable dietary sources, and the effect on appetite in ageing adults, highlighting the need for increased protein consumption to maintain muscle mass and strength.
Background.
Conducted by a team of researchers associated with the University of Aberdeen, University Hospitals Bristol NHS Foundation Trust, The University of Sheffield, Newcastle University, and other institutions, and published in the journal Nutrients.
Objectives.
The study aims to summarize evidence on optimal protein intake and distribution in ageing adults, evaluate the impact of plant-based protein sources on muscle health and appetite, and identify areas for future research. It focuses on maintaining muscle mass and strength as people age, particularly from the fourth decade of life.
Study design.
The review compiles data from various studies and meta-analyses to evaluate protein intake recommendations, protein distribution patterns, and the effects of different protein sources on muscle health and appetite in ageing adults. It includes analysis of protein quality, sustainable dietary sources, and consumer acceptance of high-protein foods.
Results.
The study finds that current dietary protein recommendations (0.8 g/kg/day) may be insufficient for maintaining muscle mass in ageing adults. It suggests higher protein intake (1.0-1.2 g/kg/day) and even distribution of protein throughout the day (about 25-30 g per meal) are beneficial. Plant-based proteins, while lower in essential amino acids and digestibility, can still be effective when consumed in adequate amounts and complementary to other plant sources.
Conclusions.
Increased protein intake, particularly from sustainable plant-based sources, is recommended to maintain muscle health in ageing adults. The study also emphasizes the need for consumer education and industry innovation to promote high-protein, sustainable food products.
Original paper.
Lonnie, M.; Hooker, E.; Brunstrom, J.M.; Corfe, B.M.; Green, M.A.; Watson, A.W.; Williams, E.A.; Stevenson, E.J.; Penson, S.; Johnstone, A.M. Protein for Life: Review of Optimal Protein Intake, Sustainable Dietary Sources and the Effect on Appetite in Ageing Adults. Nutrients 2018, 10, 360. https://doi.org/10.3390/nu10030360
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