Cold: the most effective dietary supplements

The common cold is a mild respiratory infection caused mainly by viruses such as rhinoviruses and coronaviruses, responsible for approximately 50% and 10-20% of acute upper respiratory tract infections, respectively. These viruses spread through direct person-to-person contact or via contaminated surfaces, infecting the mucous membranes of the nose and sometimes the eyes. The infection activates an immune response that leads to a series of classic symptoms. Rhinoviruses proliferate in the upper respiratory tract, where the temperature is favorable for their replication (33-35°C). When these viruses enter the nasal passages, they attach to epithelial cells, causing the release of inflammatory cytokines. This response leads to swelling of the mucosa, increased mucus secretion, and stimulation of sneezing and coughing reflexes. In the early stages, symptoms can appear as soon as 2 hours after exposure to the virus.

Symptoms and Signs

The first symptoms of the common cold, such as a runny nose, sneezing, and a burning sensation in the nose, generally appear 1 to 2 days after exposure to the virus. They reach peak intensity after 2 to 3 days and usually resolve within 10 days without complications. In some cases, a mild fever, loss of smell and taste, and fatigue may also occur.

Risk Factors

The risk of catching a cold increases under certain conditions: • Weakened immune defenses • Periods of stress or increased fatigue • Poor-quality sleep • Vitamin C deficiency • Exposure to unfavorable environmental conditions (cold, humidity, tobacco smoke)

Prevention

To prevent the common cold and strengthen the body’s resistance: • Strengthen immunity: with nutrients such as vitamin C, zinc, and by including immune-stimulating plants. • Maintain a healthy environment: regularly ventilate living spaces, humidify the air if necessary. • Hand hygiene: regular handwashing reduces the transmission of viruses that cause the common cold.

Treatments

To treat the common cold naturally, several effective options can be considered, including essential nutrients, medicinal plants, essential oils, and lactic ferments: • Essential nutrients: Vitamin C and zinc are essential to support the immune system. Vitamin C helps reduce the duration of symptoms, while zinc contributes to proper immune function. • Medicinal plantsThe echinacea and astragalus strengthen natural defenses, while andrographis and eleuthero reduce symptoms thanks to their antiviral actions. White willow helps relieve fever and pain. • Essential oilsThe essential oils of thyme, eucalyptus, and ravintsara, known for their decongestant and antiviral effects, clear the airways and thin nasal secretions. • ProbioticsA balanced microbiota is essential for immunity. Lactic acid bacteria help strengthen natural defenses.