Dr Robyn Toomath
Editorial note: In this blog-perspective, obesity expert Dr Robyn Toomath outlines the dogmas and arguments for the ‘individual-responsibility’ explanation and (lack of) solution to the obesity epidemic. She then points to the market failures that render (non-regulated) free-market solutions as doomed to fail. The views in this blog are expanded in greater depth in a book Dr Toomath is launching in Auckland and Wellington this month, Fat Science (Auckland University Press).
Professor Tony Blakely
Compared to a ‘normal’ body weight (BMI 20-<25), being obese (BMI ≥ 30) is associated with a 69% higher coronary heart disease death rate and a 47% higher stroke death rate . The same excess rates for overweight (BMI 25-<30) are 26% and 13%, respectively. In this blog, we look at a recent combined analysis of 97 studies on how much of the overweight/obesity association with cardiovascular disease (CVD) deaths is due to high blood pressure, cholesterol or glucose , and what this means for how health policy can address the obesity epidemic. We also reflect on a seminal paper on BMI and mortality by the late Gary Whitlock.