— Hair thinning during weight loss often stems from rapid weight loss, inadequate protein, nutrient deficiencies, or a too-low calorie intake—not the medication itself. How to prevent it: • Healthy Diet & Caloric Intake: Eating a balanced diet with the right calories supports your body’s needs during weight loss. • Adequate Protein: Protein fuels hair growth, so be sure to include enough lean protein in your meals. • Key Vitamins: Nutrients like biotin, zinc, and B vitamins are essential for hair health. Consider supplements or nutrient-rich foods. With a balanced diet, proper protein, and vitamins, hair loss during weight loss can often be minimized or even prevented entirely.