scholarly journals Effect of Sequentially Fed High Protein, Hydrolysed Protein, and High Fibre Diets on The Faecal Microbiota of Healthy Dogs: A Cross-Over Study

2020 ◽  
Author(s):  
Lina Maria Martinez-Lopez ◽  
Amy Pepper ◽  
Rachel Pilla ◽  
Andrew Woodward ◽  
Jan Suchodolski ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Dietary Intervention ◽  
High Protein ◽  
Commercial Diet ◽  
High Fibre ◽  
Healthy Dogs ◽  
The Individual ◽  
Faecal Microbiome ◽  
The Impact ◽  
Protein Diets

Abstract Background Dietary content and environmental factors can shape the gut microbiota, and consequently, the way the gut microbiota metabolises fats, carbohydrates and proteins, affecting overall health of the host. We evaluated the impact of 3 diets (high protein, high fibre and hypoallergenic [hydrolysed protein]) diets on the gut microbiota of healthy dogs in a cross-over sequential study. Results We showed that diet can have a large effect on the gut microbiome in dogs, regardless of the order of feeding. High-protein (all meat) diets were characterised by an increase in bacteria belonging to the Fusobacteria and Bacteroidetes phyla, whereas a high-fibre commercial diet correlated with increases in Firmicutes and Actinobacteria phyla. However, the individual dog’s baseline microbiota had the most impact on the magnitude and nature of the changes in response to dietary intervention. Conclusion Our results suggest that the dog faecal microbiome is driven by protein and fibre composition, and targeted modification of these patterns could be useful in the modulation of the gut microbiota in different diseases.

scholarly journals Effect of sequentially fed high protein, hydrolysed protein, and high fibre diets on the faecal microbiota of healthy dogs: a cross-over study

2021 ◽  
Author(s):  
Lina Maria Martinez-Lopez ◽  
Amy Pepper ◽  
Rachel Pilla ◽  
Andrew Woodward ◽  
Jan Suchodolski ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Dietary Intervention ◽  
High Protein ◽  
Commercial Diet ◽  
Insoluble Fibre ◽  
Dietary Content ◽  
Healthy Dogs ◽  
The Individual ◽  
Faecal Microbiome ◽  
The Impact

Abstract BackgroundDietary content and environmental factors can shape the gut microbiota, and consequently, the way the gut microbiota metabolises fats, carbohydrates and proteins, affecting overall health of the host. We evaluated the impact of 3 diets (all meat, high insoluble fibre dry extruded diet and hydrolysed protein dry extruded diet) on the gut microbiota of healthy dogs in a cross-over sequential study. ResultsWe showed that diet can have a large effect on the gut microbiome in dogs, regardless of the order of feeding. High-protein (all meat) diets were characterised by an increase in bacteria belonging to the Fusobacteria and Bacteroidetes phyla, whereas a high-insoluble fibre commercial diet correlated with increases in Firmicutes and Actinobacteria phyla. However, the individual dog’s baseline microbiota had the most impact on the magnitude and nature of the changes in response to dietary intervention. Conclusion Our results suggest that the dog faecal microbiome is driven by protein and fibre composition, and targeted modification of these patterns could be useful in the modulation of the gut microbiota in different diseases.

scholarly journals Effect of sequentially fed high protein, hydrolyzed protein, and high fiber diets on the fecal microbiota of healthy dogs: a cross-over study

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Lina María Martínez-López ◽  
Amy Pepper ◽  
Rachel Pilla ◽  
Andrew P. Woodward ◽  
Jan S. Suchodolski ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Dietary Intervention ◽  
Fecal Microbiota ◽  
High Protein ◽  
Commercial Diet ◽  
High Fiber ◽  
Hydrolyzed Protein ◽  
Healthy Dogs ◽  
The Impact ◽  
Insoluble Fiber

Abstract Background Dietary content and environmental factors can shape the gut microbiota, and consequently, the way the gut microbiota metabolizes fats, carbohydrates, and proteins, affecting overall health of the host. We evaluated the impact of 3 diets (all meat [raw], high-insoluble fiber dry extruded diet and hydrolyzed protein dry extruded diet) on the gut microbiota of healthy dogs in a cross-over sequential study. Results We showed that diet can have an effect on the gut microbiome in dogs, which was influenced by the order of feeding. High-protein (all meat) diets were characterized by an increase in bacteria belonging to the Fusobacteria and Bacteroidetes phyla, whereas a high-insoluble fiber commercial diet correlated with increases in Firmicutes and Actinobacteria phyla. However, the individual dog’s baseline microbiota had the most impact on the magnitude and nature of the changes in response to dietary intervention. Conclusion Our results suggest that the dog fecal microbiota is driven by protein and fiber composition to different degrees in individual animals, and targeted modification of these patterns could be useful in the modulation of the gut microbiota in different diseases.

scholarly journals Dietary Intervention Induced Distinct Repercussions in Response to the Individual Gut Microbiota as Demonstrated by the In Vitro Fecal Fermentation of Beef

2021 ◽  
Vol 11 (15) ◽  
pp. 6841
Author(s):  
Vineet Singh ◽  
Youn-Chul Ryu ◽  
Tatsuya Unno
Keyword(s):  
Gut Microbiota ◽  
Metabolic Activity ◽  
Dietary Intervention ◽  
Cost Effective ◽  
Dietary Interventions ◽  
Fecal Microbiome ◽  
Fundamental Information ◽  
The Individual ◽  
The Impact

Animals and humans have very different gut microbiota, and the human microbiota is unique to each individual. For these reasons, it is difficult to find a diet that provides all the nutrients according to individual requirements. In this study, we investigated the possibility of using simple in vitro fecal fermentation of digested food to evaluate fundamental differences in the gut metabolism of individuals with different microbiomes in response to specific dietary interventions. We fermented beef using six human fecal microbiotas, analyzed shifts in these microbiomes, and quantified short-chain fatty acid (SCFA) production in each system. Our results demonstrate that each microbiome responds with a unique shift in composition, SCFA production, and metabolic activity following 90 min of fecal fermentation of beef. Differentially abundant genera and metabolic activities varied among subjects. Only two subjects’ fecal microbiome showed no significant changes in their metabolic activity, while the other subjects’ microbial metagenome showed anywhere between 17 and 60 differences in their metabolism, including several changes associated with heart disease (i.e., depletion of oleate and palmitoleate biosynthesis). This study revealed the varying responses of each microbiome when exposed to digested beef, suggesting that this method could provide fundamental information in understanding personal nutrient requirements and the impact of changes in the individual gut microbiota on human health. Although further studies using larger study populations are required, this study describes a simple and cost-effective protocol for evaluating the interactions between specific dietary interventions and individual gut microbiota differences.

Abstract 14: An Anti-inflammatory Proton Sensing-receptor Contributes To Cardiovascular Protection Of Gut Microbiota-derived Metabolites

Hypertension ◽  
2021 ◽  
Vol 78 (Suppl_1) ◽  
Author(s):  
Liang Xie ◽  
Rikeish R Muralitharan ◽  
Evany Dinakis ◽  
Michael E Nakai ◽  
Hamdi Jama ◽  
...  
Keyword(s):  
T Cell ◽  
Gut Microbiota ◽  
Dietary Fibre ◽  
Dietary Intervention ◽  
Immune Cell ◽  
Ang Ii ◽  
Direct Role ◽  
Cardiovascular Protection ◽  
Anti Inflammatory ◽  
The Impact

High fibre (HF) diet protects against hypertension via the production of acidic metabolites, e.g. short-chain fatty acids, by the gut microbiota. While these metabolites have a direct role in blood pressure (BP) regulation, their acidic nature may activate proton-sensing receptors, which have anti-inflammatory functions. G-protein coupled receptor 65 (GPR65) is a proton-sensing receptor activated around pH 6.5 and is critical for gut homeostasis. We hypothesized that GPR65 is involved in the cardiovascular protection by dietary fibre. We first measured cecal pH of C57BL/6 (WT) mice after a 7-day dietary intervention with either HF or low fibre (LF) diets (n=6/group). HF diet lowered cecal pH to a level where GPR65 is highly activated, compared to the LF diet (6.5±0.1 vs 7.6±0.1, P<0.001). The impact of pH and GPR65 on T cell production of IFNγ, a pro-inflammatory cytokine, in vitro was measured by flow cytometry. Acidic pH inhibited the production of IFNγ by CD8+ T cells (pH 6.5 vs pH 7.5, P<0.001). Cells lacking GPR65 had higher IFNγ at both pH (P<0.001). To determine if GPR65 is involved in BP regulation by dietary fibre, WT and GPR65 knockout ( Gpr65 -/- ) mice were implanted with minipumps containing angiotensin II (Ang II, 0.5mg/kg/day, 28 days, n=8-9/group) and fed with HF diet. BP, cardiorenal function and immune cell infiltration were measured. Gpr65 -/- mice had higher BP compared to WT mice after 2 weeks (mean arterial pressure ± SEM; WT 79.8±2.4 vs Gpr65 -/- 95.8±1.6mmHg, P<0.001) and 4 weeks of Ang II infusion (WT 92.3±2.4 vs Gpr65 -/- 99.5±1.3, P=0.062). Gpr65 -/- mice developed cardiac (P=0.035) and renal (P=0.025) hypertrophy, and impaired renal natriuretic (P=0.054) and diuretic (P=0.056) function compared to WT mice. This was accompanied by higher macrophage (P=0.009) and γδ T cell (P=0.014) infiltration in the kidneys. In conclusion, our data suggest that pH-sensing by GPR65 contributes to the protection against hypertension by dietary fibre via inflammatory mechanisms. This is a novel mechanism that contributes to BP regulation via the gut microbiota.

scholarly journals Interplay between Neuroendocrine Biomarkers and Gut Microbiota in Dogs Supplemented with Grape Proanthocyanidins: Results of Dietary Intervention Study

Animals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 531 ◽  
Author(s):  
Elisa Scarsella ◽  
Michela Cintio ◽  
Lucilla Iacumin ◽  
Federica Ginaldi ◽  
Bruno Stefanon
Keyword(s):  
Gut Microbiota ◽  
Short Chain Fatty Acid ◽  
Intervention Study ◽  
Dietary Intervention ◽  
Healthy Adult ◽  
Control Diet ◽  
Live Weight ◽  
Fecal Microbiota ◽  
Chain Fatty Acid ◽  
The Individual

Several studies on the interaction between gut microbiota and diets, including prebiotics, have been reported in dogs, but no data are available about the effects of dietary administration of grape proanthocyanidins. In the study, 24 healthy adult dogs of different breeds were recruited and divided in 3 groups of 8 subjects each. A group was fed with a control diet (D0), whilst the others were supplemented with 1 (D1) or 3 (D3) mg/kg live weight of grape proanthocyanidins. Samples of feces were collected at the beginning and after 14 and 28 days for microbiota, short chain fatty acid, and lactic acid analysis. Serotonin and cortisol were measured in saliva, collected at the beginning of the study and after 28 days. A significantly higher abundance (p < 0.01) of Enterococcus and Adlercreutzia were observed in D0, whilst Escherichia and Eubacterium were higher in D1. Fusobacterium and Phascolarctobacterium were higher (p < 0.01) in D3. Salivary serotonin increased (p < 0.01) at T28 for D1 and D3 groups but cortisol did not vary. Proanthocyanidins administration influenced the fecal microbiota and neuroendocrine response of dogs, but a high variability of taxa was observed, suggesting a uniqueness and stability of fecal microbiota related to the individual.

scholarly journals Characterization of the Gut Microbiota in Individuals with Overweight or Obesity during a Real-World Weight Loss Dietary Program: A Focus on the Bacteroides 2 Enterotype

Biomedicines ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 16
Author(s):  
Rohia Alili ◽  
Eugeni Belda ◽  
Odile Fabre ◽  
Véronique Pelloux ◽  
Nils Giordano ◽  
...  
Keyword(s):  
Weight Loss ◽  
Gut Microbiota ◽  
Real World ◽  
Dietary Intervention ◽  
Streptococcus Thermophilus ◽  
High Protein ◽  
Microbiome Composition ◽  
Low Carbohydrate ◽  
Restriction Diet

Background: Dietary intervention is a cornerstone of weight loss therapies. In obesity, a dysbiotic gut microbiota (GM) is characterized by high levels of Bacteroides lineages and low diversity. We examined the GM composition changes, including the Bacteroides 2 enterotype (Bact2), in a real-world weight loss study in subjects following a high-protein hypocaloric diet with or without a live microorganisms (LMP) supplement. Method: 263 volunteers were part of this real-world weight loss program. The first phase was a high-protein low-carbohydrate calorie restriction diet with or without LMP supplements. Fecal samples were obtained at baseline and after 10% weight loss for 163 subjects. Metagenomic profiling was obtained by shotgun sequencing. Results: At baseline, the Bact2 enterotype was more prevalent in subjects with aggravated obesity and metabolic alterations. After weight loss, diversity increased and Bact2 prevalence decreased in subjects with lower GM diversity at baseline, notably in LMP consumers. Significant increases in Akkermansia muciniphila and Parabacteroides distasonis and significant decreases of Eubacterium rectale, Streptococcus thermophilus and Bifidobacterial lineages were observed after weight loss. Conclusion: Baseline microbiome composition is associated with differential changes in GM diversity and Bact2 enterotype prevalence after weight loss. Examining these signatures could drive future personalized nutrition efforts towards more favorable microbiome compositions.

scholarly journals The Impact of Low-FODMAPs, Gluten-Free, and Ketogenic Diets on Gut Microbiota Modulation in Pathological Conditions

Nutrients ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 373 ◽  
Author(s):  
Sofia Reddel ◽  
Lorenza Putignani ◽  
Federica Del Chierico
Keyword(s):  
Gut Microbiota ◽  
Dietary Intervention ◽  
Microbiota Composition ◽  
Gluten Free ◽  
Beneficial Effects ◽  
Balanced Diet ◽  
Ketogenic Diets ◽  
Pathological Conditions ◽  
Long Time ◽  
The Impact

The gut microbiota performs several essential protective, structural, and metabolic functions for host health. The maintenance of a beneficial microbiota requires a homeostatic equilibrium within microbial communities, and between the microorganisms and the host. The gut microbiota composition may be affected by external factors, among them diet habits may be considered most important. In some pathological conditions such as irritable bowel syndrome (IBS), celiac disease (CD), or neurological disorders (ND), specific dietary regimens as low-fermentable, oligo-, di-, mono-saccharides and polyols (FODMAPs), ketogenic (KD), and gluten-free (GFD) diets are considered therapeutic. These kinds of diets are characterized by a reduction or exclusion of a specific nutrient from the entire dietary pattern. Despite these alimentary regimens showing beneficial effects on disease symptoms, they can affect microbiota composition, especially if they are protracted for a long time. To date, only a few studies have reported the effects of these diets on gut microbiota. In this review, we discuss the effects of low-FODMAPs, KD, and GFD on gut microbiota modulation in pathological conditions, advancing the possibility of depicting a balanced diet and developing personalized dietary intervention protocols.

scholarly journals Two-month consumption of bread enriched with a fiber mix: impact on gut microbiota and cardiometabolic profile in at cardiometabolic-risk subjects.

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Harimalala Ranaivo ◽  
Susie Guilly ◽  
Monique Sothier ◽  
Laurie Van Den Berghe ◽  
Stéphanie Lambert-Porcheron ◽  
...  
Keyword(s):  
Waist Circumference ◽  
Gut Microbiota ◽  
Dietary Intervention ◽  
Risk Profile ◽  
Microbiota Composition ◽  
Fiber Intake ◽  
Shotgun Metagenomics ◽  
Increased Risk ◽  
Gene Richness ◽  
The Impact

AbstractIntroductionIncreased adiposity, dyslipidemia and insulin resistance are associated with increased risk of developing cardiometabolic diseases (CM). Such deleterious phenotypes have been shown to be associated with a low gene-richness microbiota that can partly be restored by a short-term dietary intervention (energy-restricted high-protein diet, low glycemic index, enrichment with fibers) in parallel to an improvement of CM profile. In this study, we aimed at increasing fiber intake in quantity and diversity through a two-month consumption of bread enriched with a mix of selected fibers and evaluated the impact of this dietary intervention on gut microbiota gene richness and CM risk profile in subjects at risk of developing CM.Materials and methodsIn a randomized double blind cross-over design, thirty-nine subjects with CM risk profile (18–70 years old, BMI: 25–35 kg/m2, waist circumference > 80 cm for women and > 96 cm for men, fiber intake < 20g/day, low fiber diversity) consumed daily for 8 weeks 150 g of standard bread vs. 150 g of bread enriched with a 7-selected fibers mix (5.55 g vs. 16.35 g of fiber respectively; 4-week washout). Gut microbiota and CM risk factors’ analyzes were conducted before and after intervention. Stool samples were analyzed by shotgun metagenomics; microbial genes and metagenomics species (MSP) profiles were generated by mapping reads on a reference genes catalog (1529 MSP).ResultsThe included dyslipidemic subjects with CM risk profile presented a lower microbiota gene richness compared to reference healthy cohorts. The two-month consumption of fiber-rich bread did not alter microbiota gene richness but modified microbiota composition with a significant decrease of Bacteroides vulgatus (q = 1.7e-4) and a significant increase of Parabacteroides distasonis (q = 2.8e-6), Fusicatenibacter saccharivorans (q = 5e-5) and Clostridiales (q = 3.8e-2). We observed in parallel a significant decrease in total cholesterol (- 0.26 mmol/L; - 5%; p = 0.021), LDL-cholesterol (- 0.2 mmol/L; - 6%, p = 0.0061) and an improvement of insulin sensibility estimated by HOMA index (3.23–2.54 mUI/L; - 21%; p = 0.0079).These effects were even significantly more pronounced for subjects presenting the higher waist circumference. Anthropometric parameters were not altered.DiscussionThe enrichment of the diet with a mix of selected fibers for 2 months altered microbiota composition by modifying the relative abundance of specific gut bacterial species, in parallel to a significant improvement of cholesterol and insulin sensitivity parameters. Increasing the quantity and diversity of dietary fiber intake could be used as an efficient tool to favorably impact CM profile.

scholarly journals Protein Supplements and Their Relation with Nutrition, Microbiota Composition and Health: Is More Protein Always Better for Sportspeople?

Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 829 ◽  
Author(s):  
Anna Kårlund ◽  
Carlos Gómez-Gallego ◽  
Anu M. Turpeinen ◽  
Outi-Maaria Palo-oja ◽  
Hani El-Nezami ◽  
...  
Keyword(s):  
Amino Acid ◽  
Muscle Growth ◽  
High Protein ◽  
Metabolic Effects ◽  
Amino Acid Supplementation ◽  
Protein Supplements ◽  
Protein Requirements ◽  
Low Protein ◽  
The Impact ◽  
Protein Diets

Sports nutrition products are developed and targeted mainly for athletes to improve their nutrient intake, performance, and muscle growth. The fastest growing consumer groups for these products are recreational sportspeople and lifestyle users. Although athletes may have elevated physiological protein requirements and they may benefit from dietary supplements, the evidence regarding the role of dietary protein and supplements in the nutrition of recreational sportspeople and sedentary populations is somewhat complex and contradictory. In high-protein diets, more undigested protein-derived constituents end up in the large intestine compared to moderate or low-protein diets, and hence, more bacterial amino acid metabolism takes place in the colon, having both positive and negative systemic and metabolic effects on the host. The aim of the present review is to summarize the impact of the high-protein products and diets on nutrition and health, in sportspeople and in sedentary consumers. We are opening the debate about the current protein intake recommendations, with an emphasis on evidence-based effects on intestinal microbiota and personalized guidelines regarding protein and amino acid supplementation in sportspeople and lifestyle consumers.

scholarly journals A high-protein total diet replacement increases energy expenditure and leads to negative fat balance in healthy, normal-weight adults

2020 ◽  
Author(s):  
Camila L P Oliveira ◽  
Normand G Boulé ◽  
Arya M Sharma ◽  
Sarah A Elliott ◽  
Mario Siervo ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Dietary Intervention ◽  
Fat Oxidation ◽  
Normal Weight ◽  
High Protein ◽  
Whole Body ◽  
Balance Study ◽  
Oxidation Rates ◽  
Total Diet ◽  
The Impact

ABSTRACT Background High-protein diets and total diet replacements are becoming increasingly popular for weight loss; however, further research is needed to elucidate their impact on the mechanisms involved in weight regulation. Objective The aim of this inpatient metabolic balance study was to compare the impact of a high-protein total diet replacement (HP-TDR) versus a control diet (CON) on select components of energy metabolism in healthy adults of both sexes. Methods The acute intervention was a randomized, controlled, crossover design with participants allocated to 2 isocaloric arms: 1) HP-TDR: 35% carbohydrate, 40% protein, and 25% fat achieved through a nutritional supplement; 2) CON: 55% carbohydrate, 15% protein, and 30% fat. Participants received the prescribed diets for 32 h while inside a whole-body calorimetry unit (WBCU). The first dietary intervention randomly offered in the WBCU was designed to maintain energy balance and the second matched what was offered during the first stay. Energy expenditure, macronutrient oxidation rates and balances, and metabolic blood markers were assessed. Body composition was measured at baseline using DXA. Results Forty-three healthy, normal-weight adults (19 females and 24 males) were included. Compared with the CON diet, the HP-TDR produced higher total energy expenditure [(EE) 81 ± 82 kcal/d, P &lt;0.001], protein and fat oxidation rates (38 ± 34 g/d, P &lt;0.001; 8 ± 20 g/d, P = 0.013, respectively), and a lower carbohydrate oxidation rate (–38 ± 43 g/d, P &lt;0.001). Moreover, a HP-TDR led to decreased energy (–112 ± 85 kcal/d; P &lt;0.001), fat (–22 ± 20 g/d; P &lt;0.001), and carbohydrate balances (–69 ± 44 g/d; P &lt;0.001), and increased protein balance (90 ± 32 g/d; P &lt;0.001). Conclusions Our primary findings were that a HP-TDR led to higher total EE, increased fat oxidation, and negative fat balance. These results suggest that a HP-TDR may promote fat loss compared with a conventional isocaloric diet. These trials were registered at clinicaltrials.gov as NCT02811276 and NCT03565510.

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