August 23, 2024 — A new paper this week reminds us of the enduring fascination with causal pathways for obesity. Why has the prevalence grown so relentlessly? How can we reverse it? This preoccupation has been the source of controversy and mistakes in dealing with obesity. One of the more memorable controversies is the back-and-forth debates between David Ludwig […]
February 15, 2024 — Science has come a long way from simplistic assumptions about fat tissue as some sort of fuel depot for the excess calories a person consumes. In fact, adipose tissue is a very active endocrine organ that regulates the use and storage of energy in ways that new research is explaining. At a cellular level, new […]
August 24, 2023 — Simplistic thinking about obesity has an overwhelming appeal. Sadly, though, it has a dismal history of letting us down. “Yes, calories in/calories out really is the key to weight loss,” writes Tamar Haspel in the Washington Post. To insure we don’t miss the point, she closes by saying: “It’s the calories, people. It’s the calories.” […]
December 3, 2022 — You can’t outrun a bad diet. It’s a clever turn of phrase that resonates. But like many things that resonate about diet, exercise, and obesity, it might be a little too clever. In a very gentle way, David Allison, Dennis Bier, and Julie Locher point this out in a brief commentary appearing this week in […]
August 22, 2022 — Believe it or not, the amount of energy we’re chewing up when we eat is both significant and important to understand. It’s significant because chewing can raise the rate at which our bodies burn energy by 10 to 15 percent. Just last week, Adam van Casteren published a paper quantifying this for the first time […]
July 29, 2022 — Genuinely, we admire the persistence of David Ludwig. Today in the Washington Post, he has an opinion piece about his opinion piece in the European Journal of Clinical Nutrition. Once again he wants to sell the world on his concept that carbs and insulin are more important for understanding obesity than simply thinking about energy […]
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 […]
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. […]
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 […]
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 […]
