Yes, Adderall can cause weight loss, especially when treatment starts. This happens because the medication commonly reduces appetite, which can lead to eating less and losing weight over time. Weight loss is a documented side effect and is not the main purpose of the medication.
The appetite-suppressing effect is linked to how Adderall acts on brain chemicals involved in focus and motivation, which also play a role in hunger. Research shows that weight loss is usually more noticeable early in treatment and may lessen as the body adjusts. In some people, weight may stabilize or partially return with longer use.
Timing matters. Reduced appetite often happens during the hours the medication is active, which may lead to skipped meals, especially earlier in the day. This effect can be stronger in children and adolescents, so regular growth and weight monitoring is important. Using Adderall only for weight loss increases the risk of side effects and misuse.
If weight loss occurs, it should be discussed with a healthcare professional. A primary care doctor or psychiatrist can help adjust the dose or timing if needed. Never use Adderall without a prescription or for weight loss alone.