Supplement and Exercise Effects on Stationary Immunity and Health in Older Adults

Inclusion Criteria: * Adults aged 65 years or older * Functional independence, defined as the ability to perform activities of daily living without assistance * Sufficient cognitive capacity to understand instructions and complete questionnaires, assessed through interview or brief cognitive screening if necessary * Not immunosuppressed * Not regular users of antioxidant or immunomodulatory supplements * Ability and availability to attend exercise sessions and scheduled assessments throughout the six-month study period * Commitment to maintain stable dietary and physical activity habits during the intervention Exclusion Criteria: * Active autoimmune diseases or clinically relevant immunosuppression * Use of corticosteroids or immunosuppressive drugs in the 4 weeks prior to study initiation * Active infection or compatible symptoms (fever, cough, diarrhea) in the 2 weeks prior to any measurement * Unstable cardiovascular conditions or medical contraindications for moderate physical exercise * Moderate to severe cognitive impairment that prevents proper participation in the scheduled activities * Participation in another clinical trial in the last 3 months * Known allergy or hypersensitivity to the supplement or any of its excipients