Burn more calories with a low-carb diet, study suggests

636782205491763773weight scales diet.jpg

19 Nov 2018 --- A new trial from Boston Children’s Hospital has linked low-carb diets to burning more calories and, subsequently, to successful and long-lasting weight loss. Significantly, the findings show that dietary composition may affect energy expenditure independently of body weight.

Following weight loss, energy expenditure decreases, metabolism slows down and the body burns fewer calories. This often leads to weight gain, though not much is known about how dietary composition influences this adaptive response over the long term. 

A new study led by Dr. Cara Ebbeling and Dr. David Ludwig compared the effects of diets varying in carbohydrate to fat ratio on energy expenditure over a twenty-week period. 

“Our study calls into question that all calories are created equal and suggests that lowering carbohydrate may increase calorie burning compared with lowering fat,” Dr. Ebbeling, Associate Director of the New Balance Foundation Obesity Prevention Center at Boston Children’s Hospital, tells NutritionInsight.

They monitored 234 overweight adults aged 18 to 65 years with a body mass index (BMI) of 25 or higher, who took part in an initial weight loss diet for about ten weeks. 

In total, 164 of test subjects reached the target weight loss of around ten percent of body weight and were then randomly assigned to follow either a high (sixty percent), moderate (forty percent) or low (twenty percent) carbohydrate diet for twenty weeks.

The participants were given fully prepared meals and the researchers tracked their weight and measured their energy expenditure to compare how the different groups burned calories at the same weight.

The results showed that over the 20 weeks, energy expenditure was significantly higher in participants who followed low-carb diets compared to those following high-carb diets. Participants on the low-carb diet burned 209 to 278 calories a day more than those on the high-carb diet. 

Those with the highest insulin secretion, within the low-carb diet group, at the beginning of the study saw a difference in total energy expenditure up to 478 kilocalories a day more than those who followed the high-carb diet. This “would translate into an estimated ten kg weight loss after three years, assuming no change in calorie intake,” state Ebbeling and Ludwig.

Hormones involved in energy balance (ghrelin and leptin) changed in a potentially advantageous manner in participants assigned to the low-carbohydrate diet compared to those assigned to the high-carb diet.

Ebbeling and Ludwig note that there are study limitations and possibly factors that cannot be controlled. Yet despite all this “a low glycemic load, high-fat diet might facilitate weight loss maintenance beyond the conventional focus on restricting energy intake and encouraging physical activity,” they conclude and say more research is warranted.

“Our study provides a piece to a large puzzle. When addressing complex research questions, no single study provides all of the answers. Like all studies, ours has strengths and limitations. More research is needed to replicate the findings and explore mechanisms linking dietary composition to calorie burning,” continues Dr. Ebbeling

Nevertheless, Dr. Ebbeling adds that not all carbohydrates are “off limits” and “whole fruits, beans, and other unprocessed carbohydrates can be part of a healthful diet. On the other hand, consuming added sugar, white flour, and other sources of refined carbohydrate may make it hard to keep weight off. Reducing consumption of these products can have metabolic benefits.”

By Kristiana Lalou

To contact our editorial team please email us at editorial@cnsmedia.com

Related Articles

Health & Nutrition News

Gut appeal: Healthy microbiome thanks to food processing waste

15 Feb 2019 --- New research from Maastricht University (UM) has uncovered a novel use for waste from the food processing industry: boosting the microbiome. Using the TNO in vitro model of the colon (TIM-2), research by Carlota Bussolo de Souza has shown that fermenting fiber from fruit and vegetable peel can help improve the gut flora of people with obesity.

Health & Nutrition News

False energy boosting claims? Dextro Energy advert deemed misleading by UK advertising watchdog

15 Feb 2019 --- The UK’s advertising watchdog, Advertising Standards Authority (ASA), has ruled that a recent advertisement for Dextro Energy Glucose Tablets wrongly implies that the product has energy boosting capabilities and exaggerates the product’s vitamin C content. An energy boosting claim would need to be authorized on the EU Register of nutrition and health claims made on foods to be allowed.

Health & Nutrition News

“Ready for the keto comeback”: Abitec Corporation pegs keto-friendly ingredient range

15 Feb 2019 --- Nutritional and functional lipids manufacturer Abitec Corporation is “close to launching” an MCT powder on a fiber carrier that will be keto friendly and dairy free. This comes as there is huge market potential for its portfolio of keto-friendly ingredients, as the diet’s popularity continues to spike.

Health & Nutrition News

Weekly roundup: Ulrick & Short launches “scilia” range of insoluble fiber, PURIS partners with Midwestern BioAg

15 Feb 2019 --- In nutrition news this week, the International Food Policy Research Institute (IFPRI) Director General, Dr. Shenggen Fan, has become a member of the Global Panel on Agriculture and Food Food Systems for Nutrition. Food Supplements Europe (FSE) welcomed leading European trade bodies AFEPADI, SANI, SFSA and SISTE, and Australia-based Swisse Wellness in order to make positive contributions to the supplement sector. PURIS has entered a partnership with Midwestern BioAg (MBA) to promote organic farming in the US and Ulrick & Short has launched “scilia”, a range of insoluble fiber ingredients.

Health & Nutrition News

Indena’s Centella Asiatica extract touted as beneficial for heart and skin health

14 Feb 2019 --- Botanical ingredients company Indena’s Centella asiatica extract holds potential in a wide range of medicinal applications in diabetic neuropathy, cardiovascular diseases and skin health. This is according to a new monograph by several researchers, commissioned by the company and coined “Centella asiatica: entering a new era” which takes note of the pre-clinical and clinical studies that confirm the plant’s properties for broader applications.  

More Articles
URL : http://www.nutritioninsight.com:80/news/burn-more-calories-with-a-low-carb-diet-study-suggests.html