1. intake of any micronutrient supplement during the month prior to inclusion. 2. patients fulfilling hospitalization criteria. 3. previous allergies to the micronutrient components and excipients. 4. age ≥ 90 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) 5. participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. 6. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. 7. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement 8. pregnancy or breastfeeding

1. intake of any micronutrient supplement during the month prior to inclusion. 2. patients fulfilling hospitalization criteria. 3. previous allergies to the micronutrient components and excipients. 4. age ≥ 90 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) 5. participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. 6. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. 7. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement 8. pregnancy or breastfeeding

intake of any micronutrient supplement during the month prior to inclusion. patients fulfilling hospitalization criteria. previous allergies to the micronutrient components and excipients. age ≥ 90 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement pregnancy or breastfeeding

intake of any micronutrient supplement during the month prior to inclusion. patients fulfilling hospitalization criteria. previous allergies to the micronutrient components and excipients. age ≥ 90 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement pregnancy or breastfeeding

intake of any micronutrient supplement during the month prior to inclusion. patients fulfilling hospitalization criteria. previous allergies to the micronutrient components and excipients. sars-cov-2 completed vaccination (2 doses) age ≥ 80 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement.

intake of any micronutrient supplement during the month prior to inclusion. patients fulfilling hospitalization criteria. previous allergies to the micronutrient components and excipients. sars-cov-2 completed vaccination (2 doses) age ≥ 80 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement.

1. intake of any micronutrient supplement during the month prior to inclusion. 2. patients fulfilling hospitalization criteria. 3. previous allergies to the micronutrient components and excipients. 4. sars-cov-2 completed vaccination (2 doses) 5. age ≥ 80 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) 6. participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. 7. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. 8. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement.

1. intake of any micronutrient supplement during the month prior to inclusion. 2. patients fulfilling hospitalization criteria. 3. previous allergies to the micronutrient components and excipients. 4. sars-cov-2 completed vaccination (2 doses) 5. age ≥ 80 years with any comorbidity (diabetes, hypertension, obesity, heart disease, respiratory disease) 6. participation in other research that requires experimental intervention (does not include observational studies) in the previous month before signing the informed consent form. 7. detection by the researcher of lack of knowledge or willingness to participate and comply with all the requirements of the protocol. 8. any other findings that at the discretion of the researcher may compromise protocol performance or significantly influence the interpretation or results of the effects of the nutritional supplement.