How can you tell whether someone is vegan ?
Answer: Because they tell you… again, and again, and again
One of the key things in losing weight is, at least for me, keeping track of what I eat using MyFitnessPal.com (Free Calorie Counter, Diet & Exercise Journal).
If today I eat something with a large number of calories, and with high-calorie density (highly processed foods, sweets), by weighing myself the next morning I will likely see an increase in my weight. Tracking very thoroughly my calorie intake also helps with this – it helps me keep in my mind the fact that I need to lose weight.
Other than that, I try to do some basic calorie restrictions and having a longer time frame of not eating.
I do some sports, it surely helps, but I consider the impact at a minimum level.