Inclusion Criteria:  People of both sexes aged between 70 and 80 years. The score on the Mini Mental State Examination (MMSE) must be greater than or equal to 24 points. Self-employed to attend the centre where the study is carried out. Signature of the informed consent form.  Exclusion Criteria:  Coronary or cerebrovascular atherosclerotic pathology. Diabetes mellitus Grade II or higher heart failure. Moderate or severe chronic obstructive pulmonary disease. Advanced renal or hepatic disease. Severe mental illness. Oncological disease under treatment diagnosed within the last 5 years or terminal condition. Morbid obesity (IMC ≥ 40 kg/m2). Intolerance and/or allergy to any of the grape components. Any other circumstance at the criterion of the researchers.