Posts Tagged ‘energy balance’

Obesity: My Model’s Better Than Your Model

June 19, 2022 — All models are wrong, but some are useful. Quite a distinguished collection of obesity researchers are working hard to prove that these words of a great statistician – George Box – were precisely correct. One group, led by David Ludwig, suggests that their carbohydrate-insulin model (CIM) for obesity “better reflects knowledge on the biology of […]

Obesity: Chasing a Simple Answer in Carbs and Insulin

September 14, 2021 — Simplicity sells while complexity crashes. So for years, a simple idea has dominated our thinking about obesity. It is merely a matter of letting the balance of calories in and out – energy balance – get out of hand. For decades, scientists have known that the story is more complex, but simplicity has staying power. […]

Exercise: Energy In, Energy Out, Energy Sideways

August 30, 2021 — Exercise for weight loss is a durable concept. Some advocates even push for food labels to describe the exercise necessary to burn calories in a food serving. But the premise for this is false. A new study in Current Biology explains the problem better than ever before. It turns out that when a person does […]

Looking at Evidence for Yoga in the Midst of a Pandemic

August 19, 2021 — It’s hard to deny that yoga has put an imprint on popular culture – especially popular concepts about fitness and wellbeing. It had an outsized role in defining a now dominant fashion trend – athleisure. Prior to the pandemic, yoga was a roughly ten billion dollar industry. But of course, the pandemic put a dent […]

New Insights into Metabolism, Plus a Little Humility

August 13, 2021 — An impressive new study published today in Science has researchers feeling a bit giddy. “Blown away” was the sentiment Rozalyn Anderson expressed to the New York Times about the study. “A pivotal paper,” said Leanne Redman, adding that it will shape textbooks for years to come. Herman Pontzer and a remarkable array of collaborators analyzed […]

“Life Is a Game of Turning Energy into Kids”

June 11, 2021 — One of the simplistic models of obesity relies on the notion of a balance between calories a person consumes in foods and drinks and those burned in physical activity. Some people even go so far as suggesting food labels should tell us how much we’ll have to exercise to burn off the calories in that […]

The Carbohydrate Insulin Model, and Debates, Endure

December 17, 2020 — A furious debate rages on. Are we meant to get half of our food energy from carbs? So naturally, this was a key theme of debates about dietary guidelines due soon from the USDA and HHS. But a quieter debate persists in the background. This is an ongoing discussion about the merits of the carbohydrate […]

Diet Studies: Another Round on Carbs, Fat, and Protein

November 14, 2019 — Are we ready for another round on carbs, fat, and protein? It sure seems like it. Popular interest in low-carb diets keeps growing steadily. A more extreme version – keto – generates a lot of buzz right now. And yet, research keeps telling us that playing around with these macronutrients doesn’t make a huge difference. […]

ObesityWeek: Intermittent Fasting and Circadian Rhythms

November 7, 2019 — The role of intermittent fasting (IF) and circadian rhythms is a subject of intense interest for people focused on obesity. How can you tell? Just look at the packed hall yesterday at ObesityWeek 2019 for the Blackburn Symposium. In a cavernous room with seating for more than a thousand people you could not find a […]

Protein Leverage Coming at Us

July 24, 2019 — Are we doomed to complete the full cycle of macronutrient obsession? First it was fat. Starting in the 1980s fat was at the root of all our dietary woes. Next came carbs. Low carb and keto diets are still a hot topic of discussion and debate among folks who are certain they have the answer […]