Faculty Opinions recommendation of Protein Intake to Maximize Whole-Body Anabolism during Postexercise Recovery in Resistance-Trained Men with High Habitual Intakes is Severalfold Greater than the Current Recommended Dietary Allowance.

2020 ◽  
Author(s):  
Stuart M Phillips
Keyword(s):  
Protein Intake ◽  
Recommended Dietary Allowance ◽  
Whole Body ◽  
Dietary Allowance ◽  
Postexercise Recovery

scholarly journals Protein Intakes Above the Recommended Dietary Allowance Reduce Fat Mass Irrespective of Energy Balance and Resistance Training Status: A Systematic Review and Meta-analysis (P08-056-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Robert Bergia ◽  
Yu Wang ◽  
Joshua Hudson ◽  
Wayne Campbell
Keyword(s):  
Systematic Review ◽  
Energy Balance ◽  
Resistance Training ◽  
Fat Mass ◽  
Protein Intake ◽  
Meta Analysis ◽  
Recommended Dietary Allowance ◽  
Training Status ◽  
Randomized Controlled ◽  
Dietary Allowance

Abstract Objectives The recommended dietary allowance (RDA) for protein of 0.8 g/kg/d is the current standard of dietary adequacy. Research assessing the effects of higher protein intakes on body composition often focus on changes in lean mass and use the RDA as the reference protein intake. However, it is important to also assess the importance of protein intake on fat mass, which relates to cardiometabolic health indices. Therefore, we sought to conduct a systematic review and meta-analysis to determine the effects of protein intakes greater than versus at the RDA on changes in whole body fat mass. Methods Three researchers independently screened 1531 articles published through August 2018 using PubMed, Scopus, CINAHL, and Cochrane databases, with additional articles identified through previously published review articles. Randomized-controlled, parallel studies at least 6 weeks long on apparently healthy adults (> = 19 years old) were eligible for data extraction. Results Data from 16 randomized-controlled, parallel studies resulting in 20 comparisons of fat mass changes were included in the final analysis. This abstract presents sub-analyses for comparisons with catabolic and anabolic stimuli, specifically energy restriction (ER) and/or resistance training (RT), respectively. Among all comparisons, consuming greater than the protein RDA resulted in greater fat mass change [–0.81 kg (–1.25, –0.37); WMD (95% CI), n = 20 comparisons]. The beneficial effect of greater protein intake on adiposity was apparent irrespective of energy or training status. Groups consuming greater than the RDA with ER lost more fat mass [–0.91 kg (–1.55, –0.28), n = 13], and groups consuming greater than the RDA without ER lost fat mass, while there was no reduction in groups consuming the RDA [–0.65 kg (–1.29, –0.05), n = 7]. Greater protein intake promoted fat mass loss with RT [–0.91 kg (–1.55, –0.28), n = 2] and without RT [–0.65 kg (–1.29, –0.05), n = 18]. Conclusions These results support protein intakes greater than the RDA to reduce fat mass, irrespective of energy balance and resistance training status. Funding Sources No external funding was provided.

Low intake of vegetable protein is associated with altered ovulatory function among healthy women of reproductive age

2021 ◽  
Author(s):  
Keewan Kim ◽  
Samrawit F Yisahak ◽  
Carrie J Nobles ◽  
Victoria C Andriessen ◽  
Elizabeth A DeVilbiss ◽  
...  
Keyword(s):  
Total Protein ◽  
Protein Intake ◽  
Vegetable Protein ◽  
Reproductive Hormones ◽  
Animal Protein ◽  
Recommended Dietary Allowance ◽  
Reproductive Age ◽  
Dietary Allowance ◽  
Protein Rich ◽  
Reproductive Aged Women

Abstract Context Diets high in plant-based protein have gained popularity due to increasing health concerns regarding consumption of animal products. Though links between intakes of certain protein-rich foods and reproductive disorders have been suggested, the relationship of overall animal and vegetable proteins with reproductive hormones among reproductive-aged women is unknown. Objective To evaluate associations between intake of dietary protein with reproductive hormones and sporadic anovulation among reproductive-aged women. Design A prospective cohort study, 2005-2007. Setting University at Buffalo, western New York, USA. Participants 259 premenopausal women (18-44 years) without dietary restrictions. Main Outcome Measure(s) Serum reproductive hormones were determined up to 8 times per cycle for 2 cycles. Protein intake was assessed the day prior to hormone assessment at 4 visits/cycle using 24-hour recalls. Results Overall, 84% of participants met the recommended dietary allowance for total protein set for reproductive-aged women. Neither total nor animal protein intake were associated with reproductive hormones or anovulation. However, vegetable protein intake in the lowest tertile was associated with lower luteal phase progesterone (-18.0%, 95% CI -30.2, -3.6), higher follicle-stimulating hormone (3.8%, 95% CI 0.2, 7.6), and a higher risk of anovulation (risk ratio [RR] 2.53, 95% CI 1.21, 5.26), compared to the middle tertile. Nuts and seeds were the only protein-rich foods associated with an elevated risk of anovulation (RR 2.12, 95% CI 1.17, 3.85). Conclusions Findings suggest that among women who meet the recommended dietary allowance for total protein, low intake of vegetable, but not animal, protein may disturb normal ovulatory function.

scholarly journals Is the Optimal Level of Protein Intake for Older Adults Greater Than the Recommended Dietary Allowance?

2012 ◽  
Vol 68 (6) ◽  
pp. 677-681 ◽  
Author(s):  
E. Volpi ◽  
W. W. Campbell ◽  
J. T. Dwyer ◽  
M. A. Johnson ◽  
G. L. Jensen ◽  
...  
Keyword(s):  
Older Adults ◽  
Protein Intake ◽  
Optimal Level ◽  
Recommended Dietary Allowance ◽  
Dietary Allowance

Effect of variable protein intake on whole-body protein turnover in young men and women

1995 ◽  
Vol 61 (1) ◽  
pp. 69-74 ◽  
Author(s):  
D L Pannemans ◽  
D Halliday ◽  
K R Westerterp ◽  
A D Kester
Keyword(s):  
Protein Turnover ◽  
Protein Intake ◽  
Young Men ◽  
Whole Body ◽  
Body Protein ◽  
Men And Women

Whole-body leucine and lysine metabolism: response to dietary protein intake in young men

1981 ◽  
Vol 240 (6) ◽  
pp. E712-E721 ◽  
Author(s):  
K. J. Motil ◽  
D. E. Matthews ◽  
D. M. Bier ◽  
J. F. Burke ◽  
H. N. Munro ◽  
...  
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Protein Intake ◽  
Whole Body ◽  
Dietary Protein Intake ◽  
Body Protein ◽  
Fed State ◽  
Amino Acid Requirements ◽  
Maintenance Requirements ◽  
Lysine Metabolism

Whole-body leucine and lysine metabolism was explored in young adult men by a primed constant intravenous infusion of a mixture of L-[1–13C]leucine and L-[alpha-15N]lysine over a 4-h period. Subjects were studied after an overnight fast (postabsorptive state) or while consuming hourly meals (fed state) after adaptation to diets providing either a surfeit level of protein (1.5 g.kg body-1.day-1), a level approximating maintenance requirements (marginal intake) (0.6 g.kg body wt-1.day-1), or a grossly inadequate level (0.1 g.kg-1.day-1). The change in protein intake from a marginal to a surfeit level was associated with an increased leucine flux and incorporation of leucine into body protein. In the fed state, oxidation of leucine increased sharply and release of leucine from tissue protein diminished. When dietary protein intake was reduced from the requirement to inadequate level, leucine flux and body protein synthesis and protein breakdown were reduced, together with a smaller reduction in leucine oxidation. The response of the metabolism of [15N]lysine was responsible for maintenance of leucine and other essential amino acid economy, and they appear to be related to the nitrogen and amino acid requirements of the subject. These findings also demonstrate an effect of meals, modulated by their protein content, on the dynamics of whole-body amino acid metabolism.

scholarly journals Dietary reference intakes: aplicabilidade das tabelas em estudos nutricionais

2006 ◽  
Vol 19 (6) ◽  
pp. 741-760 ◽  
Author(s):  
Renata Maria Padovani ◽  
Jaime Amaya-Farfán ◽  
Fernando Antonio Basile Colugnati ◽  
Semíramis Martins Álvares Domene
Keyword(s):  
Recommended Dietary Allowance ◽  
Institute Of Medicine ◽  
Adequate Intake ◽  
Dietary Reference Intakes ◽  
Dietary Allowance ◽  
Intake Level ◽  
Health Canada

As avaliações de dietas e o planejamento de consumo são atividades tradicionalmente realizadas por meio da comparação de médias de ingestão contra valores de referência de energia e nutrientes, seja para indivíduos ou grupos. Limitações de ordem técnica devem ser levadas em conta, sem as quais se pode chegar a conclusões equivocadas quanto ao atendimento das necessidades nutricionais. As Recomendações Nutricionais propostas pelo Institute of Medicine dos Estados Unidos, em conjunto com a agência Health Canada, a partir de 1997, conhecidas como Dietary Reference Intakes, representam um novo paradigma para o estabelecimento de indicadores nutricionais de consumo, ao aperfeiçoarem o uso do conceito de risco na avaliação de dietas. Fontes de erro intra ou interindividuais, devidas à variabilidade de padrão de consumo e decorrentes da distribuição das necessidades na população, aliadas a um pequeno número de dias de observação, têm grande impacto sobre a confiabilidade da análise. Por esta razão devem orientar a utilização dos valores, que foram organizados em tabelas com as quatro categorias de nutrientes, publicadas entre 1997 e 2005. O presente trabalho teve por objetivo destacar algumas características de aplicação e consolidar os valores diários de Tolerable Upper Intake Level, Adequate Intake e Recommended Dietary Allowance, facilitando a consulta por parte de profissionais e estudantes da área de nutrição.

Sign in / Sign up

Export Citation Format

Share Document