Weight fluctuation happens daily, week to week, or month to month. Learn about causes and when to see a healthcare provider about weight changes.

For some people, gaining weight is important for health. You may want or need to gain weight if you’ve always been underweight, are losing weight unintentionally, or have an eating disorder. You may ...

For years, endocrinologist Leigh Perreault , MD, felt there had to be a better way to help patients with weight management than sending them home ...

People tend to put on about a pound on average from November to January. Avoid winter weight gain by eating nutritious foods, ...