Know how many calories you are really eating.
A Starbucks coffee can range from being a healthful beverage containing only 5 calories to a dietary monstrosity of 700 calories. (Venti Iced Peppermint White Chocolate Mocha with whipped cream, anyone?) Likewise, while Subway sandwiches were the key salvation for company spokesman Jared Fogle, had he made the poor decision to regularly pick the Chicken & Bacon Ranch Melt, he might have ended up even fatter.
Now you can use apps to avoid such errors. Restaurant Nutrition is one that provides nutritional information for meals at most chain restaurants. If you prefer to cook at home, MyFood is an app that offers nutritional insights about your groceries.
Fitness is necessary but Nutrition is the key to weight loss.