Losing weight is never easy, no matter how big or small your goal is. Losing 100 pounds is a big goal, and it can be especially difficult for beginners. Fortunately, there are several proven, healthy ways to lose weight that can help you achieve that goal.

For healthy people, a sudden loss of 5% of body weight is not normal. Therefore, people who experience rapid, unexplained weight loss should have a general health check-up to confirm their health status.