I am not in any way suggesting that you kick overweight friends to the curb. Matter of fact, one of the elements to successful weight loss and especially maintaining a loss is support of family and friends. It might be beneficial to do your own fitness challenge with friends. Keep in mind that it doesn't have to be about weight. It might be as simple as getting a few friends together for an evening walk. You might decide to agree that lunches out have to be healthy. It's much easier to order a fresh veggie salad if the others aren't into the nachos. Create a group step challenge with everyone taking turns setting the goal. An account at MyFitnessPal.com allows friends to share daily food journals with each other. My take on this quote is that whenever facing a challenge, friends and family can make it a big difference. Don't wait for the Biggest Loser. Get started now!