We spend the majority of our time at the workplace—at least eight hours a day. Most of us are glued to our chairs, have some sort of caffeine beverage within reach, and keep a secret stash of candy, chips, or pretzels to comfort us when we push our stress threshold. Case in point, we’re obese.

The cure to America’s obesity problem starts with building a healthy workplace. It’s where we develop most of our eating habits—healthy or unhealthy—and we take these habits home with us. As an executive of a company, you have the power to encourage healthier habits. Here’s how you can trade in a no. 2 cheeseburger with a side of fries combo for a healthy workplace combo with a side of extra productivity.

Stock the break room with healthy snacks. A break room filled with cookies, doughnuts, and chips won’t do your employees’ health any good, and it affects more than their waistlines. Fattening and sugary foods often come with a crash, which could be why eyes start glazing over in those late afternoon meetings. It’s time companies trash the junk and offer healthier snacking alternatives like fruits, nuts, nutrition bars, and even baked chips. The couple extra bucks you spend on healthier snacks could save you thousands of dollars in medical costs.

Encourage movement. The most recent buzz in the news is that sitting is the new smoking. New research shows spending too much time in a chair can increase your risk of heart disease, obesity, and diabetes. Encourage your employees to really take a whole hour for lunch and to use a portion of that time to be on their feet. Even better, next time you have a meeting with just one or two people, take it outside and make it a walking meeting.

Be a role model. Setting a good example can make all the difference. Healthy living is a domino effect. If one person leads, others are likely to follow. Sometimes it’s just about taking that first step.

Offer wellness programs. Some employees may require professional help to achieve better health. An employee will be more inclined to participate in these programs if their company covers at least part of the cost. However, it’s important to invest in a program with proven results. The Center for Medical Weight Loss comes with a weight loss guarantee. Physicians are specifically trained to coach, mentor, and motivate patients struggling with weight. Providing employees with discounts to health clubs is an obvious and good incentive, but it’s not compelling enough for everyone. A program like CMWL keeps employees on top of their weight loss plan because the program requires meeting with a physician regularly.

Have fun. A fun workplace is a healthy workplace. Laughter and a positive attitude go a long way. When workers genuinely enjoy what they are doing, they are more productive, creative, and feel less stressed. You can have fun and get a lot of work done too!