Friday February 28, 2020

Here’s how Consuming High Fibre Diet Leads to Bloating

People who consume high fibre diets may experience bloating

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high fibre diets bloating
People who eat high fibre diets are more likely to experience bloating if their high fibre diet is protein-rich. Pixabay

People who eat high fibre diets are more likely to experience bloating if their high fibre diet is protein-rich as compared to carbohydrate-rich, according to a new study.

For the study, published in the journal Clinical and Translational Gastroenterology, the researchers from Johns Hopkins University analysed data from a clinical trial of high fibre diets.

“It’s possible that in this study, the protein-rich version of the diet caused more bloating because it caused more of a healthy shift in the composition of the microbiome,” said study co-senior author Noel Mueller from Johns Hopkins University in the US.

high fibre diets bloating
“It’s possible that in this study, the protein-rich version of the diet caused more bloating because it caused more of a healthy shift in the composition of the microbiome. Pixabay

“Notably, the protein in these diets was mostly from vegetable sources such as beans, legumes, and nuts,” Mueller added.

High-fibre diets are believed to cause bloating by boosting certain populations of healthful fibre-digesting gut bacteria species, which produce gas as a byproduct.

The findings thus also hint at a role for “macronutrients” such as carbs and proteins in modifying the gut bacteria population–the microbiome.

In the study, the researchers examined a dietary clinical trial that was conducted in 2003 and 2005 in Boston.

Known as the Optimal Macronutrient Intake Trial to Prevent Heart Disease (OmniHeart), it included 164 participants who had above-normal blood pressure.

They were assigned to three different diets over consecutive six-week periods separated by two-week “washout” intervals during which participants returned to regular eating habits.

high fibre diets bloating
High-fibre diets are believed to cause bloating by boosting certain populations of healthful fibre-digesting gut bacteria species, which produce gas as a byproduct. Pixabay

The diets were all considered high-fibre, low-sodium “DASH” diets, and had the same number of calories, but varied in their macronutrient emphases: a carbohydrate-rich version was, by calories, 58 per cent carbohydrate, 15 per cent protein, and 27 per cent fat; a plant-protein-rich version was 48 per cent carbs, 25 per cent protein, 27 per cent fat; and a fat-rich version was 48 per cent carbohydrate, 15 per cent protein, and 37 per cent fat.

The primary results of the OmniHeart trial, published in 2005, suggested that the plant-protein-rich and fat-rich diets were the most effective in reducing blood pressure and improving measures of blood cholesterol.

In their new analysis of this data, they examined how participants’ reports of bloating–which were among the secondary data collected in that trial–varied as participants ate the three OmniHeart diets.

A key finding was that the prevalence of bloating went from 18 per cent before the diets to 24, 33, and 30 per cent, respectively, on the carb-, protein-, and fat-rich diets–indicating that these high fibre diets did indeed appear to increase bloating.

Also Read- Eating Walnuts May Help Slow Cognitive Decline: Study

The researchers also analysed the relative changes among the diets, and linked the protein-rich diet to a significantly greater chance of bloating–roughly 40 percent greater–in comparison with the carb-rich diet.

The results suggest that substituting high quality carb calories, such as whole grain, for protein calories might reduce bloating for those on high fiber diets, making such diets more tolerable. (IANS)

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Air Pollution Increases Risk of Developing Kidney Diseases

India may face kidney diseases due to air pollution

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Kidney disease pollution
People living in countries with higher levels of air pollution such as India and China may face higher risks of developing kidney diseases. Pixabay

Researchers have found that people living in countries with higher levels of air pollution such as India and China may face higher risks of developing kidney diseases.

The findings may be especially important for parts of the world with higher air pollution where fine particulate matter levels are five to 10 times higher than in the US, the study said.

It’s known that breathing in air pollution can have detrimental health effects beyond the lungs, but few studies have shown how it impacts the kidneys, which act as filters for the blood.

“As rates of chronic kidney disease rise worldwide, it is important to understand whether and how exposure to air pollution plays a role,” said study researcher Matthew F. Blum from the Johns Hopkins University in the US.

Kidney disease pollution
It’s known that breathing in air pollution can have detrimental health effects beyond the lungs, but few studies have shown how it impacts the kidneys, which act as filters for the blood. Pixabay

For the findings, published in the Clinical Journal of the American Society of Nephrology, the research team examined information on 10,997 adults across four sites in the US who were followed from 1996-1998 through 2016.

The researchers estimated the monthly average levels of tiny particles of air pollution–called fine particulate matter–based on participants’ home addresses.

Fine particulate matter comes from a variety of sources including fossil fuel combustion, industrial processes, and natural sources, they said.

Also Read- 4 in 10 American Adults are Obese: Survey

The team found that exposure to higher amounts of fine particulate matter was associated with a higher degree of albuminuria — a marker of kidney dysfunction — at the start of the study as well as a higher risk of developing chronic kidney disease over time.

According to the researchers, future studies should examine whether efforts to improve air quality yield health benefits, including reducing rates of chronic kidney disease. (IANS)