Health and Me

Health And Me Desk

High-Fibre Diet Outperforms Metformin In Blood Sugar Control And Weight Loss, Study Finds

High Fibre Foods For Better Blood Sugar Control

An 84-day clinical trial has found that a high-fibre diet improved <span>blood sugar control</span> and reduced body weight more effectively than metformin, the standard first-line diabetes drug, in adults newly diagnosed with both type 2 diabetes and obesity.

Researchers led by Li Y and colleagues enrolled adults aged 18 to 70 with newly diagnosed type 2 diabetes and obesity, according to the study published in Frontiers in Microbiology. 

Participants were randomly assigned to either a high-fibre dietary intervention, using two standardised fibre formulations plus dietary guidance, or metformin monotherapy, given according to routine clinical practice. Neither group combined the two approaches. 

Researchers tracked diet through food frequency questionnaires and 24-hour dietary recalls, and measured outcomes including HbA1c, BMI, fasting blood glucose, and glucose responses during meal tolerance tests.

<h2>Fibre beat the drug on blood sugar and weight</h2>

By the end of the trial, the high-fibre group had significantly lower HbA1c and BMI than the metformin group, per the study. Continuous glucose monitoring showed the fibre group had more stable blood sugar overall, with lower average glucose levels and less variability throughout the day.

The fibre group also came out ahead on body composition: lower waist-to-hip ratios, lower leg, trunk and total body fat mass, and lower triglyceride levels compared with the metformin group, the researchers reported.

<strong>Also Read:</strong> <a href="https://www.healthandme.com/health-news/94-of-tb-patients-report-anxiety-77-depression-study-highlights-mental-health-toll-of-indias-tb-burden-article-156366419" data-type="tilCustomLink" target="_blank">94% Of TB Patients Report Anxiety, 77% Depression: Study Highlights Mental Health Toll Of India's TB Burden</a>

The high-fibre diet reshaped participants’ gut microbiota in ways metformin didn’t. By day 28, the diet had enriched bacteria from the Bifidobacterium and Lactobacillus genera, both generally considered beneficial, while reducing Bilophila wadsworthia, a bacterium linked to gut inflammation, according to the study. <a href="https://www.healthandme.com/health-wellness/metformin-warning-nhs-urges-immediate-action-if-you-experience-these-2-life-threatening-symptoms-article-153297035" data-type="tilCustomLink" target="_blank">Metformin</a>, by contrast, produced little detectable change in <a href="https://www.healthandme.com/health-wellness/how-does-your-gut-microbiome-impact-your-overall-health-article-151213545" data-type="tilCustomLink" target="_blank">gut bacteria</a>.

Several bacterial species associated with fermenting carbohydrates increased specifically in the fibre group. Participants whose acetate levels, a byproduct of that fermentation, rose the most also saw significantly greater drops in HbA1c at both day 28 and day 56, and these participants tended to have distinct gut microbiome profiles at the start of the trial.

The likely mechanism involves short-chain fatty acids like acetate, produced when gut bacteria ferment fibre. These compounds are thought to boost secretion of <a href="https://www.healthandme.com/health-wellness/glp-1-receptor-agonist-glp-1-drugs-why-not-everyone-taking-ozempic-may-have-lower-blood-sugar-levels-article-154080825" data-type="tilCustomLink" target="_blank">GLP-1</a>, the same gut hormone that newer diabetes drugs like semaglutide are designed to mimic, which in turn improves insulin sensitivity and promotes fullness, according to a separate summary of the research by News-Medical.

This isn’t an isolated finding. A separate, smaller crossover trial of 34 newly diagnosed patients, published in a different study, similarly found that early high-fibre nutrition therapy produced rapid improvements in glycaemic control alongside reshaping of the gut microbiome, reinforcing the idea that timing and gut-level changes both matter. 

The study’s authors concluded that a high-fibre dietary intervention could be a promising strategy for managing newly diagnosed diabesity, outperforming metformin alone on both blood sugar and weight-related outcomes. They noted that larger trials with longer follow-up are needed to confirm how durable these benefits are and to better understand the exact microbiome mechanisms involved.

Health Conditions A-Z

health

high-fibre-foods-for-better-blood-sugar-control

high fibre diet

metformin and diabetes

type 2 diabetes treatment

blood sugar control

gut microbiome and weight loss

trump-signs-womens-health-order-melanias-5-pillars-of-innovation-explained

Trump Signs Women’s Health Order: Melania’s 5 Pillars of Innovation Explained

world-osteoporosis-day-why-women-face-a-higher-risk-of-osteoporosis-as-they-age

World Osteoporosis Day: Why Women Face A Higher Risk of Osteoporosis As They Age

Nutrition

8 Sit-Up Variations to Strengthen Your Core and Build Stability

Benefits Of Ayurvedic Health Supplement Ashwagandha

9 Anti-Inflammatory Breakfast Options You Should Try

5 Foods You Should Avoid For PCOS, Says Gynecologist

Love Sitting With Your Legs Crossed? Here’s You Should Avoid It

6 Daily Foods That Are Secretly Increasing Your Calories

9 Brain Boosters You Should Do Everyday

Hip Exercises That Will Keep You Flexible As You Age

9 Leg Exercises Office Workers’ Should Do At Home

Benefits of Having Herbal Tea Every Morning

9 Daily Habits That Boost Your Brain Power

Lower-Body Exercises That Are Game-Changers

How Drinking Apple Cider Vinegar Helps You

Aging Myths You Should Never Believe

Superfoods That Support Your Gut Health

What Happens To Your Body When You Eat Instant Noodles Every Day?

Health Issues Premature Babies Often Face

Exercises Office Workers Should Do For Their Heart Health

Reasons Why You Should Add Raw Turmeric To Your Diet

Benefits Of Drinking Milk At Night: Why You Should Do It

Food That Provides Vitamin B12 Naturally In Your Diet

Surprising Health Benefits Of Fenugreek Seeds

9 Superfoods You Should Eat For Your Brain Health

What Does Mental Health Support Look Like At Work?

Long Stretches You Should Do To Unwind From Your Day

Colon Cancer In Young Adults: Early Symptoms You Should Know

Health Benefits Of Eating Dry Fruits Everyday

Are You At Risk For Fried Rice Syndrome?

These Tests Reveal How Well You Are Aging

Lower-Back Exercises You Should Do After A Long-Day's Work

Children’s Diet – What Kids Need To Eat For Immunity Building

Common Diabetes Myths That Could Hurt Your Health

Love Spicy Food? Here’s How It Affects Your Health

Superfood List: Veggies And Fruits You Must Have For Immunity

Foods People With IBS Should Avoid

Exercises To Improve Digestion

Easy Work Lunches You Can Make In The Morning

Hunger Vs Craving: Difference Explained In 60 seconds

These Things Can Cause Your Heart To Age Faster

High Carb Foods That Are Actually Healthy

An 84-day clinical trial has found that a high-fibre diet improved blood sugar control and reduced body weight more effectively than metformin, the standard first-line diabetes drug, in adults newly diagnosed with both type 2 diabetes and obesity.Researchers led by Li Y and colleagues enrolled adults aged 18 to 70 with newly diagnosed type 2 diabetes and obesity, according to the study published in Frontiers in Microbiology. Participants were randomly assigned to either a high-fibre dietary intervention, using two standardised fibre formulations plus dietary guidance, or metformin monotherapy, given according to routine clinical practice. Neither group combined the two approaches. Researchers tracked diet through food frequency questionnaires and 24-hour dietary recalls, and measured outcomes including HbA1c, BMI, fasting blood glucose, and glucose responses during meal tolerance tests.Fibre beat the drug on blood sugar and weightBy the end of the trial, the high-fibre group had significantly lower HbA1c and BMI than the metformin group, per the study. Continuous glucose monitoring showed the fibre group had more stable blood sugar overall, with lower average glucose levels and less variability throughout the day.The fibre group also came out ahead on body composition: lower waist-to-hip ratios, lower leg, trunk and total body fat mass, and lower triglyceride levels compared with the metformin group, the researchers reported.Also Read: 94% Of TB Patients Report Anxiety, 77% Depression: Study Highlights Mental Health Toll Of India's TB BurdenHow the gut bacteria changedThe high-fibre diet reshaped participants’ gut microbiota in ways metformin didn’t. By day 28, the diet had enriched bacteria from the Bifidobacterium and Lactobacillus genera, both generally considered beneficial, while reducing Bilophila wadsworthia, a bacterium linked to gut inflammation, according to the study. Metformin, by contrast, produced little detectable change in gut bacteria.Several bacterial species associated with fermenting carbohydrates increased specifically in the fibre group. Participants whose acetate levels, a byproduct of that fermentation, rose the most also saw significantly greater drops in HbA1c at both day 28 and day 56, and these participants tended to have distinct gut microbiome profiles at the start of the trial.Why fibre may work this wayThe likely mechanism involves short-chain fatty acids like acetate, produced when gut bacteria ferment fibre. These compounds are thought to boost secretion of GLP-1, the same gut hormone that newer diabetes drugs like semaglutide are designed to mimic, which in turn improves insulin sensitivity and promotes fullness, according to a separate summary of the research by News-Medical.This isn’t an isolated finding. A separate, smaller crossover trial of 34 newly diagnosed patients, published in a different study, similarly found that early high-fibre nutrition therapy produced rapid improvements in glycaemic control alongside reshaping of the gut microbiome, reinforcing the idea that timing and gut-level changes both matter. The study’s authors concluded that a high-fibre dietary intervention could be a promising strategy for managing newly diagnosed diabesity, outperforming metformin alone on both blood sugar and weight-related outcomes. They noted that larger trials with longer follow-up are needed to confirm how durable these benefits are and to better understand the exact microbiome mechanisms involved.