Weight gain and obesity are conditions in which excess body fat accumulates to levels that can impede health and function. Causes include poor diet (high in sugar and processed foods), sedentary lifestyle, hormonal imbalances, and metabolic disorders. Consequences may include increased risk of diabetes, heart disease, joint pain, and decreased energy. Comprehensive management employs dietary changes (low in sugar and processed foods), intermittent fasting, strength training, and functional medicine strategies. Herbal and nutritional supplements may help regulate metabolism, support liver detoxification, and balance hormones. Consistent support promotes healthy, sustainable weight loss and improved overall wellness.