A 2012 study also showed that people on a low-carb diet burned 300 more calories a day – while resting! According to one of the Harvard professors behind the study this advantage “would equal the number of calories typically burned in an hour of moderate-intensity physical activity”. Imagine that: an entire bonus hour of exercise every day, without actually exercising. A later, even larger and more carefully conducted study confirmed the effect, with different groups of people on low-carb diets burning an average of between 200 and almost 500 extra calories per day.1
^ Jump up to: a b c d e f g h i Payne, C; Wiffen, PJ; Martin, S (18 January 2012). Payne, Cathy (ed.). "Interventions for fatigue and weight loss in adults with advanced progressive illness". The Cochrane Database of Systematic Reviews. 1: CD008427. doi:10.1002/14651858.CD008427.pub2. PMID 22258985. (Retracted, see doi:10.1002/14651858.cd008427.pub3. If this is an intentional citation to a retracted paper, please replace {{Retracted}} with {{Retracted|intentional=yes}}.)
These diets and methods might never come right out and admit that or say you just need to eat less calories (partly because it doesn’t fit with their gimmick, partly because people don’t want to hear that they have to [GASP!] count calories or [GASP!] eat less of them, and partly because it’s hard to make money off of something that is simple, obvious and free.)
But vegetarians may suffer high rates of chronic disease if they eat a lot of processed foods. Take India, for example, where rates of diabetes, heart disease, obesity, and stroke have increased far faster than might have been expected given its relatively small increase in per-capita meat consumption. This has been blamed in part on the apparent shift from brown rice to white and substitution of other refined carbohydrates, packaged snacks, and fast-food products for India’s traditional staples of lentils, fruits, vegetables, whole grains, nuts, and seeds.
If you don’t have an established exercise routine, simply walking is the best first step toward weight loss. “Walking is a pretty good entry point for people,” says Gagliardi. This is particularly true if you have been out of the gym for a while and want to ease back into a workout routine. One small study published in The Journal of Exercise Nutrition & Biochemistry found that obese women who did a walking program for 50 to 70 minutes three days per week for 12 weeks significantly slashed their visceral fat compared to a sedentary control group.