Walker Health Labs launched its weight-control app FoodTweeks that comes with a twist. Not only does it help you eat better, but it will also help feed the hungry. Rather than relying on traditional calorie-counting, willpower-based strategy, FoodTweeks supports a daily habit that is easy to do and is already shared by tens of millions of Americans.

For every set of calories tweeked out of an item, FoodTweeks makes a donation to a local food bank that provides the same number of nutritious calories to feed hungry families.“800 million times a day in America, weight-conscious individuals ‘tweek’ their food by making small changes that remove unwanted calories,” said FoodTweeks founder Jay Walker. “For example, they ask for less mayo, drink diet soda, or buy a low-fat dressing. But they don’t weigh food portions or count calories when they do it.

Users simply tell the app what food they are thinking of buying, eating or preparing. The app instantly displays images of suggested “tweeks” that remove enough calories to make a positive difference – but not in a way that changes the taste or leaves users hungry.

The company maintains a crowdsourced picture database of more than 44,000 small changes that show users how to “tweek” everything from a particular brand of cheeseburger at a national restaurant chain, to grocery store purchases and homemade dishes of every kind.

As an exciting extra benefit, for every set of calories tweeked out of an item, FoodTweeks makes a donation to a local food bank that provides the same number of nutritious calories to feed hungry families. Furthermore, posting each tweek on Facebook or Twitter doubles the donation.

FoodTweeks is currently establishing working relationships with dozens of respected food banks from Connecticut to California.

The service is advertiser-supported, offering free discount coupons for potential “tweeks” from restaurants, grocery stores and packaged food manufacturers.