From Chick Nutrition to Nutrition Policy

Hegsted, D. M.

doi:10.1146/annurev.nutr.20.1.1

Cited by 15 publications

(9 citation statements)

References 33 publications

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“…For example, progressive increases in protein intake are coupled with increased fasting nitrogen losses [45,46] along with an increase in feeding induced nitrogen accrual [45,46] that is perhaps even more pronounced than fasting losses [45]. Although not fully elucidated, a possible implication of this might be an effect on lean tissue mass.…”

Section: Discussionmentioning

confidence: 99%

Dietary protein to maximize resistance training: a review and examination of protein spread and change theories

Bosse

Dixon²

2012

Journal of the International Society of Sports Nutrition

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An appreciable volume of human clinical data supports increased dietary protein for greater gains from resistance training, but not all findings are in agreement. We recently proposed "protein spread theory" and "protein change theory" in an effort to explain discrepancies in the response to increased dietary protein in weight management interventions. The present review aimed to extend "protein spread theory" and "protein change theory" to studies examining the effects of protein on resistance training induced muscle and strength gains. Protein spread theory proposed that there must have been a sufficient spread or % difference in g/kg/day protein intake between groups during a protein intervention to see muscle and strength differences. Protein change theory postulated that for the higher protein group, there must be a sufficient change from baseline g/kg/day protein intake to during study g/kg/day protein intake to see muscle and strength benefits. Seventeen studies met inclusion criteria. In studies where a higher protein intervention was deemed successful there was, on average, a 66.1% g/kg/day between group intake spread versus a 10.2% g/kg/day spread in studies where a higher protein diet was no more effective than control. The average change in habitual protein intake in studies showing higher protein to be more effective than control was +59.5% compared to +6.5% when additional protein was no more effective than control. The magnitudes of difference between the mean spreads and changes of the present review are similar to our previous review on these theories in a weight management context. Providing sufficient deviation from habitual intake appears to be an important factor in determining the success of additional protein in enhancing muscle and strength gains from resistance training. An increase in dietary protein favorably effects muscle and strength during resistance training.

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Section: Discussionmentioning

confidence: 99%

Dietary protein to maximize resistance training: a review and examination of protein spread and change theories

Bosse

Dixon²

2012

Journal of the International Society of Sports Nutrition

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“…Further information on this area of discussion is available (22)(23)(24)(25)(26)(27)(28)(29)(30)(31) .…”

Section: Stratum 5: Mineral Balancementioning

confidence: 99%

Elsie Widdowson Lecture 2006 Mining the depths: metabolic insights into mineral nutrition

Prentice

2007

Proc. Nutr. Soc.

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2006 marked the centenary of the birth of Dr Elsie Widdowson, a pioneer of nutrition science. One of the hallmarks of Elsie Widdowson's research was an integrative approach that recognised the importance of investigating the mechanisms underpinning a public health or clinical issue at all levels, looking into the physiology, comparative biology, intermediate metabolism and basic science. The theme of the present lecture, given in celebration of the work of Dr Widdowson, is mineral nutrition, with a particular focus on Ca, P and vitamin D. The contributions of Dr Widdowson to the early understanding of mineral nutrition are reviewed and the latest scientific findings in this rapidly-expanding field of research are presented.

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“…Additionally, the body’s response to protein is not static, but adjusts to the diet it is afforded [63-65]. For example, progressive increases in protein intake are coupled with increased fasting nitrogen losses [66,67] along with an increase in feeding induced nitrogen accrual [66,67] that is perhaps even more pronounced than fasting losses [66].…”

Section: Introductionmentioning

confidence: 99%

Dietary protein in weight management: a review proposing protein spread and change theories

Bosse

Dixon²

2012

Nutr Metab (Lond)

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A large volume of human clinical data supports increased dietary protein for favorable changes to body composition, but not all data are conclusive. The aim of this review is to propose two theories, “protein spread theory” and “protein change theory” in an effort to explain discrepancies in the literature. Protein spread theory proposed that there must have been a sufficient spread or % difference in g/kg/day protein intake between groups during a protein intervention to see body composition and anthropometric differences. Protein change theory postulated that for the higher protein group, there must be a sufficient change from baseline g/kg/day protein intake to during study g/kg/day protein intake to see body composition and anthropometric benefits. Fifty-one studies met inclusion criteria. In studies where a higher protein intervention was deemed successful there was, on average, a 58.4% g/kg/day between group protein intake spread versus a 38.8% g/kg/day spread in studies where a higher protein diet was no more effective than control. The average change in habitual protein intake in studies showing higher protein to be more effective than control was +28.6% compared to +4.9% when additional protein was no more effective than control. Providing a sufficient deviation from habitual intake appears to be an important factor in determining the success of additional protein in weight management interventions. A modest increase in dietary protein favorably effects body composition during weight management interventions.

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From Chick Nutrition to Nutrition Policy

Abstract: s Abstract It is difficult to abstract a summary of a lifetime of work.

Cited by 15 publications

References 33 publications

Dietary protein to maximize resistance training: a review and examination of protein spread and change theories

Dietary protein to maximize resistance training: a review and examination of protein spread and change theories

Elsie Widdowson Lecture 2006 Mining the depths: metabolic insights into mineral nutrition

Dietary protein in weight management: a review proposing protein spread and change theories

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