Pilot Open Label Study With Commercial Supplementation in Healthy Subjects

Inclusion Criteria: * Informed consent: * Cooperative volunteers * normal physical examination * Female subjects: must not be pregnant, breastfeeding, or at risk to become pregnant during study participation. Female patients of childbearing potential, must test negative for pregnancy at the time of enrollment and agree to use a reliable method of birth control or remain abstinent during the study or for at least 30 days following the last dose of study drug, whichever is longer, or, must be a female of non-childbearing potential, defined as: * women who have had surgical sterilization (hysterectomy or bilateral oophorectomy or tubal ligation), * women ≥60 years of age, or women ≥40 and \<60 years of age who have had a cessation of menses for at least 12 months and a follicle-stimulating hormone (FSH) test confirming non-childbearing potential (FSH ≥40 mIU/mL). * Have a negative COVID-19 antigen rapid test Exclusion Criteria: * Physical findings: clinically significant abnormal physical findings which could interfere with the objectives of the study (i.e. Body Mass Index \> 30, body temperature \> 37,5°C) * Diseases: Diabetes, cardiovascular, kidney, liver or lung diseases incompatible with exercise, active infections and cancer; angina pectoris or congestive heart failure in New York Heart Association class III-IV, severe chronic pulmonary disease, severe symptomatic obliterating arteriosclerosis, muscle- skeletal or cerebrovascular diseases incompatible with exercise trai…