Flavour of the Week

TGIF


  • In the new issue of the Journal of the American Medical Association, a meta-analysis of 97 studies (!) shows that obesity significantly increases risk of all-cause mortality, particularly grade 2 and 3 obesity (BMI > 35), which carry a 29% increased risk of death. Interestingly, neither overweight (BMI 25-29.9) or grade 1 obesity (BMI 30 – 34.9) were associated with increased mortality risk, but instead a protective effect.

      • In an accompanying editorial, Heymsfield and Cefalu write: “Not all patients classified as being overweight or having grade 1 obesity, particularly those with chronic diseases, can be assumed to require weight loss treatment.” Definitely food-for-thought for health care practitioners!
  • Is the government undermining our food choice-autonomy? The debate regarding government intervention in the fight against obesity continues. A new poll shows that Americans are split on how involved they think the government should be in limiting our food choices, like the NYC Big Gulp Ban – one-third say anything to curb the epidemic, another one-third nixes any involvement, with the rest remaining undecided. Where do you fall? Take our poll on Facebook!
  • TGIFCould the BPA hubbub be for nothing? Researchers from the University of Missouri were not able to reproduce previous research in mice indicating that BPA exposure in utero predisposed offspring to obesity and type 2 diabetes. Does this mean BPA is safe? Nope, it just means that more studies are needed!
  • Struggling to squeeze in exercise as a part of your New Year’s resolution to shed pounds? Focusing on aerobic exercise + resistance training, but not resistance training alone, is most effective according to new data. In an RCT published this month, those who did aerobic exercise (45 min at 70-85% max heart rate x 3 days weekly) AND resistance training (3 sets of 8-12 reps on 8 machines x 3 days weekly) showed weight loss, reduced body fat, decreased waist circumference AND gains in lean body mass. Aerobic exercise alone lead to weight loss, decreased weight and fat mass, but participants’ lean body mass was not altered; resistance training alone resulted in increased lean mass only.
  • Are nutrition and mental health intertwined? Although evidence suggests a link between nutrition and depression, more randomized clinical studies are needed to determine causality. For now, fast food is linked to an increased prevalence of depression, while the Mediterranean diet is associated with reduced risk of depression. The journal is open access, so you can read the article full-text here.
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