Exercise times on food labels?

Shirley Cramer, chief executive of the Royal Society for Public Health – Food should be labelled with the exercise needed to expend its calories:

The Royal Society for Public Health has called for the introduction of “activity equivalent” calorie labelling, with symbols showing how many minutes of several different physical activities are equivalent in the calories expended to those in the product. The aim is to prompt people to be more mindful of the energy they consume and how these calories relate to activities in their everyday lives, to encourage them to be more physically active.

As reported by the CBC, not everyone is a fan of this approach:

Not everybody is sold on the idea. Dr. Yoni Freedhoff is the medical director of the Bariatric Medical Institute in Ottawa.

“People believe that exercise is the ticket to the weight loss express,” he said.

But, in fact, exercise doesn’t burn that many calories.

I believe Dr. Freedhoff is correct. Labelling foods with exercise equivalents is not the right message, and mixes up the idea of weight loss with exercise, when they are not well linked at all.

From what I’ve been reading, exercise is key for reducing your risk of dying early due to cadriovascular disease. With better fitness you also reduce your risk of physical injuries. However, the amount of exercise you do is not well correlated to your weight. Meaning that you cannot realistically exercise enough to reduce your weight if you are consuming the same amount of calories.

Generally:
– More exercise => better fitness and live longer
– Fewer calories => lose weight

See Dr. Freedhoff’s talk on the issue: