EXAMINATION OF HIGH PROTEIN DİETS EFFECTS ON BODY WEIGHT AND HEALTH

2015 ◽  
pp. 70-70
Author(s):  
Nevin ŞANLIER ◽  
Yazar Adı Yazar Soyadı ◽  
Çiğdem Ceren BAŞALAN
Keyword(s):  
Body Weight ◽  
High Protein ◽  
High Protein Diets ◽  
Protein Diets

scholarly journals Impact of dietary macronutrient profile on feline body weight is not consistent with the protein leverage hypothesis

2018 ◽  
Vol 120 (11) ◽  
pp. 1310-1318
Author(s):  
David Allaway ◽  
Carlos H. de Alvaro ◽  
Adrian Hewson-Hughes ◽  
Ruth Staunton ◽  
Penelope Morris ◽  
...  
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Energy Content ◽  
High Protein ◽  
Protein Energy ◽  
Average Loss ◽  
Metabolisable Energy ◽  
Adult Cats ◽  
High Protein Diets ◽  
Protein Diets

AbstractThe protein leverage hypothesis proposes that the need to prioritise protein intake drives excess energy intake (EI) when the dietary ratio of protein to fat and carbohydrate is reduced. We hypothesised that cats may become prone to overconsuming energy content when moderate protein diets were offered, and considered the potential influence of fat and carbohydrate on intake. To determine the effect of dietary protein and macronutrient profile (MNP) on EI, weight and body composition, cats (1–4 years) were offered food in excess of energy requirements (ER). A total of six diets were formulated, containing moderate (approximately 7 % w/w; approximately 22 % metabolisable energy (ME)) or high (approximately 10 % w/w; approximately 46 % ME) protein and varying levels of carbohydrate and fat. For 4 weeks, 120 cats were offered 100 % of their individual ER of a diet at the MNP selected by adult cats (50:40:10 protein energy ratio:fat energy ratio:carbohydrate energy ratio). EI, body weight (BW), body composition, activity and palatability were measured. Subsequently, cats were offered one of the six diets at 200 % of their individual ER for 4 weeks when measurements were repeated. Cats offered excess high protein diets had higher EI (kJ/kg) throughout, but at 4 weeks BW was not significantly different to baseline. Cats offered excess moderate protein diets reduced EI and gradually lost weight (average loss of 0·358 (99 % CI 0·388, 0·328) kg), irrespective of fat:carbohydrate and initial palatability. The data do not support the protein leverage hypothesis. Furthermore, cats were able to adapt intake of a wet diet with high protein in an overfeeding environment within 28 d.

scholarly journals Effects of high-protein diets on body weight, glycaemic control, blood lipids and blood pressure in type 2 diabetes: meta-analysis of randomised controlled trials

2013 ◽  
Vol 110 (5) ◽  
pp. 781-789 ◽  
Author(s):  
Jia-Yi Dong ◽  
Zeng-Li Zhang ◽  
Pei-Yu Wang ◽  
Li-Qiang Qin
Keyword(s):  
Blood Pressure ◽  
Type 2 Diabetes ◽  
Weight Loss ◽  
Body Weight ◽  
Meta Analysis ◽  
High Protein ◽  
Cochrane Library ◽  
High Protein Diets ◽  
Protein Diets

High-protein diets are popular for weight management, but the health effects of such diets in diabetic persons are inconclusive. The aim of the present meta-analysis was to examine the effects of high-protein diets on body weight and metabolic risk factors in patients with type 2 diabetes. We searched the PubMed and Cochrane Library databases for relevant randomised trials up to August 2012. Either a fixed- or a random-effects model was used to combine the net changes in each outcome from baseline to the end of the intervention. Overall, nine trials including a total of 418 diabetic patients met our inclusion criteria. The study duration ranged from 4 to 24 weeks. The actual intake of dietary protein ranged from 25 to 32 % of total energy in the intervention groups and from 15 to 20 % in the control groups. Compared with the control diets, high-protein diets resulted in more weight loss (pooled mean difference: − 2·08, 95 % CI − 3·25, − 0·90 kg). High-protein diets significantly decreased glycated Hb A1C (HbA1C) levels by 0·52 (95 % CI − 0·90, − 0·14) %, but did not affect the fasting blood glucose levels. There were no differences in lipid profiles. The pooled net changes in systolic and diastolic blood pressure were − 3·13 (95 % CI − 6·58, 0·32) mmHg and − 1·86 (95 % CI − 4·26, 0·56) mmHg, respectively. However, two studies reported a large influence on weight loss and HbA1C levels, respectively. In summary, high-protein diets (within 6 months) may have some beneficial effects on weight loss, HbA1C levels and blood pressure in patients with type 2 diabetes. However, further investigations are still required to draw a conclusion.

scholarly journals High-protein diets containing different milk protein fractions differently influence energy intake and adiposity in the rat

2007 ◽  
Vol 99 (4) ◽  
pp. 739-748 ◽  
Author(s):  
Lisa Pichon ◽  
Mylene Potier ◽  
Daniel Tome ◽  
Takashi Mikogami ◽  
Benoit Laplaize ◽  
...  
Keyword(s):  
Body Weight ◽  
Energy Intake ◽  
Milk Protein ◽  
Body Weight Gain ◽  
High Protein ◽  
Lipid Ratio ◽  
Ad Libitum ◽  
Carbohydrate To Lipid Ratio ◽  
High Protein Diets ◽  
Protein Diets

This study was designed to determine whether (1) protein type and (2) the dietary carbohydrate to lipid content affected daily energy intake, body weight and adiposity in rats receiving high-protein diets ad libitum over a 25 d period. Each of the ten groups (n 8) consumed ad libitum one of the diets described below. A normal protein diet (P14C56L30, containing whole milk protein) and nine high-protein diets were used. The composition of the high-protein diets varied in terms of two parameters: macronutrient composition and protein type. Three macronutrient compositions (P55C35L10, P55C15L30 and P55L45) combined with three protein types (Milk, Whey and βLac) allowed us to test nine diets. The results show that both protein type (βLac > Whey > Milk) and the carbohydrate to lipid ratio (P55L45>P55C35L10 or P55C15L30) modulated reductions in energy intake, body weight and adiposity in rats receiving high-protein diets ad libitum, when compared with rats fed a normal diet under the same conditions. By contrast, blood lipid profiles were mainly influenced by the carbohydrate to lipid ratio (P55C15L30>P55L45 or P55C35L10). Moreover, βLac protein was also the most efficient in tending to preserve lean body mass at the expense of fat mass, and improve blood metabolism hormones (insulin, leptin). Taken together, the present results show that whey-derived protein sources, and particularly β-lactoglobulin-enriched fraction, are of considerable value because of their ability to reduce both body weight gain and the adiposity index.

scholarly journals THE EFFECT OF HIGH PROTEIN DIETS ON THE KIDNEYS OF RATS

1926 ◽  
Vol 67 (1) ◽  
pp. 101-107
Author(s):  
Henry Jackson ◽  
Margaret D. Riggs
Keyword(s):  
High Protein ◽  
High Protein Diets ◽  
Protein Diets

Dietary protein paradox: decrease of amino acid availability induced by high-protein diets

1993 ◽  
Vol 264 (6) ◽  
pp. G1057-G1065 ◽  
Author(s):  
C. Moundras ◽  
C. Remesy ◽  
C. Demigne
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Dietary Protein ◽  
High Protein ◽  
Glutamine Metabolism ◽  
Metabolic Adaptation ◽  
Casein Diet ◽  
Serine Dehydratase ◽  
High Protein Diets ◽  
Protein Diets

The aim of the present study was to evaluate the effect of changes in dietary protein level on overall availability of amino acids for tissues. For this purpose, rats were adapted to diets containing various concentrations of casein (7.5, 15, 30, and 60%) and were sampled either during the postprandial or postabsorptive period. In rats fed the protein-deficient diet, glucogenic amino acids (except threonine) tended to accumulate in plasma, liver, and muscles. In rats fed high-protein diets, the hepatic balance of glucogenic amino acids was markedly enhanced and their liver concentrations were consistently depressed. This response was the result of a marked induction of amino acid catabolism (a 45-fold increase of liver threonine-serine dehydratase activity was observed with the 60% casein diet). The muscle concentrations of threonine, serine, and glycine underwent changes parallel to plasma and liver concentrations, and a significant reduction of glutamine was observed. During the postabsorptive period, adaptation to high-protein diets resulted in a sustained catabolism of most glucogenic amino acids, which accentuated the drop in their concentrations (especially threonine) in all the compartments studied. The time course of metabolic adaptation from a 60 to a 15% casein diet has also been investigated. Adaptation of alanine and glutamine metabolism was rapid, whereas that of threonine, serine, and glycine was delayed and required 7-11 days. This was paralleled by a relatively slow decay of liver threonine-serine dehydratase (T-SDH) activity in contrast to the rapid adaptation of pyruvate kinase activity after refeeding a high-carbohydrate diet.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Contrarily to whey and high protein diets, dietary free leucine supplementation cannot reverse the lack of recovery of muscle mass after prolonged immobilization during ageing

2012 ◽  
Vol 590 (8) ◽  
pp. 2035-2049 ◽  
Author(s):  
Hugues Magne ◽  
Isabelle Savary-Auzeloux ◽  
Carole Migné ◽  
Marie-Agnès Peyron ◽  
Lydie Combaret ◽  
...  
Keyword(s):  
Muscle Mass ◽  
High Protein ◽  
Leucine Supplementation ◽  
Prolonged Immobilization ◽  
High Protein Diets ◽  
Protein Diets
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