How to boost your immune system in autumn: vitamins, habits and prevention

Autumn is a season of transition. Lower temperatures, fewer hours of daylight, abrupt changes between the heat of the day and the cold of the night, a return to routine, more time spent indoors, and increased circulation of respiratory viruses. All of this means that many people notice their immune systems are weakened and they are more prone to colds, sore throats, fatigue, or minor infections.

Boosting your defenses in autumn doesn't just mean taking vitamins when you're already feeling unwell. The most effective approach is to prepare your body in advance, combining good daily habits, rest, a balanced diet, and, when necessary, specific supplements that help the immune system function properly.

Why do immune systems weaken in autumn?

During the summer we tend to have a more flexible routine: more hours of sunlight, rest, outdoor activities, and, in many cases, a different diet. When October arrives, the body has to adapt to a significant change.

The most influential factors are:

• Less sun exposure, which can reduce vitamin D levels.

• More contact in enclosed spaces, where viruses circulate more easily.

• Sudden changes in temperature.

• Stress from returning to work, studies or family routine.

• Lower sleep quality.

• More disordered eating habits after summer.

The immune system needs energy, nutrients, and rest to function properly. If any of these essential elements are lacking, the body can become more vulnerable.

Key vitamins and minerals for the immune system

Vitamin C

Vitamin C contributes to the normal function of the immune system and helps protect cells from oxidative stress. It is one of the most well-known vitamins in autumn and winter because it plays a role in the body's defense response.

It is found in citrus fruits, kiwi, strawberries, red peppers, broccoli, and leafy green vegetables.

It can also be taken as a supplement when the diet is not sufficient or during times of increased exertion.

Vitamin D

Vitamin D plays a vital role in the immune system. During the months with less sunlight, its levels can decrease, especially in people who spend many hours indoors or regularly use sun protection.

A vitamin D deficiency can affect fatigue, bone health, and immune response. Therefore, supplementation is often considered during autumn and winter, always under professional guidance.

Zinc

Zinc plays a role in numerous bodily functions, including the proper functioning of the immune system. It also helps maintain healthy skin, hair, and nails.

It can be found in meats, seafood, nuts, seeds, and legumes.

Selenium

Selenium is an antioxidant mineral that helps protect cells from oxidative damage. It also plays a role in the normal function of the immune system.

The importance of the gut microbiota

Much of the immune system is linked to the gut. The gut microbiota acts as a defense barrier and helps maintain the body's balance.

When the gut microbiota is disrupted by stress, poor diet, antibiotics, or changes in routine, the immune system can be compromised. Therefore, probiotics and prebiotics can be helpful at certain times of the year, especially if there are digestive issues, recurrent infections, or a weakened immune system.

Daily habits to strengthen your immune system

Sleep well

Sleep is one of the most important tools for the immune system. Sleeping too little or poorly can increase inflammation and reduce the body's ability to respond.

Ideally, you should maintain stable schedules, avoid screens before bed, and create a relaxing nighttime routine.

Balanced diet

A diet rich in fruits, vegetables, quality protein, healthy fats, and fresh foods provides the necessary nutrients to maintain a healthy immune system. It's advisable to avoid excessive sugar, alcohol, and ultra-processed foods, as these can promote inflammation and disrupt the gut microbiota.

Moderate physical activity

Regular exercise helps improve circulation, reduce stress, and strengthen the immune system. Intense workouts aren't necessary; walking, swimming, or other gentle exercise on a regular basis provides benefits.

Handwashing and ventilation

Although they may seem like basic measures, they remain essential. Ventilating enclosed spaces and washing hands frequently reduces the risk of respiratory infections.

Defense supplements: when they can help

Supplements can be helpful when experiencing fatigue, poor diet, seasonal changes, or a tendency towards recurrent infections. Some formulas combine vitamin C, vitamin D, zinc, echinacea, propolis, or probiotics.

Not all supplements are the same, and not everyone needs the same thing. The choice will depend on age, lifestyle, diet, medication, and overall health.

Boosting your immune system in autumn requires a holistic approach. Vitamins, rest, nutrition, hydration, gut microbiota, and preventative care all work together to help your body adapt to the changing seasons.

If you're experiencing fatigue, frequent colds, or want to boost your immune system before the cold weather arrives, you can consult us at the pharmacy. We'll help you choose the most suitable supplement and routine based on your needs.