To analyze the efficacy of daily consumption of a combination of garlic and onion extracts on the incidence of respiratory infection symptoms in healthy elderly volunteers living in a residence.

The duration of symptoms and related medication will also be studied.

It is a controlled, randomized, double-blind, parallel-group nutritional intervention study.

66 healthy elderly volunteers living in a nursing home will be randomly distributed into 2 equal groups: control group and intervention group.

For 36 weeks the volunteers will take the product immediately after lunch. During that time they will maintain their lifestyle and nutritional habits.

Every 4 weeks, the medical team of the residence will review the cases of respiratory diseases of infectious origin of the volunteers.

Inclusion Criteria:

• Live in a nursing home with medical services.
• Accept being vaccinated for the flu.
• Freely accepted to participate in the study and sign the informed consent document.
• Have the consent of the family.

Exclusion Criteria:

• Having any disease that affects the development and results of the study.
• Be unable to understand the study and sign voluntarily and freely the informed consent.
• Have a low expectation of compliance with the study protocol.

Each volunteer is assigned a "participant number" that will be associated with a pot that will have all the product for the study.

The "pot number" is the same as the "participant number". The pot does not indicate which product it is carrying.