
How to support kids’ immune systems
Everything you need to know to keep your child’s immune system fit and healthy!
The essentials at a glance:
We have researched all the important topics related to children’s immune systems and ways to strengthen them in a scientifically sound manner and compiled them in detail for you.
All topics at a glance:
- Development of the immune system
- Recognizing immune deficiency
- Sleep and exercise
- Hygiene and germs
- Vitamins and minerals
- The role of nutrition
- Dietary supplements
- Home remedies to strengthen the immune system
- Stress level
Development of children’s immune systems
Children’s immune systems develop throughout the first years of life. At birth, they are not yet fully mature and need the first few months and years to develop completely. During the first six months, newborns receive antibodies through breast milk that protect them from many infections. From around three to five years of age, the immune system has stabilized enough for children to fight infections more effectively. However, the immune system does not fully mature until puberty.
Recognizing immune deficiency in children

A weakened immune system in children can manifest through frequent infections that last longer or are more severe than usual. Signs may include recurring colds, ear infections, bronchitis, or sinus infections. Slow wound healing or persistent fatigue can also indicate a weakened immune system. If your child is sick more often than other children of the same age, this could point to an immune deficiency. You can find more information in our article Weakened immune system.
Sleep and physical activity to strengthen the immune system
Sleep and physical activity play a crucial role in strengthening children's immune systems. A healthy sleep schedule is essential, as the body carries out important repair and regeneration processes during sleep. Adequate sleep is particularly important for children, supporting growth and development while the immune system is activated to fight pathogens. Experts recommend that children get between 10 and 14 hours of sleep per night, depending on their age. Quiet, regular sleep helps strengthen the immune system and reduce susceptibility to infections.
Physical activity is another key to supporting the immune system. Regular exercise helps stimulate the immune system and mobilize the body's defenses. Children who are active every day benefit from improved circulation, allowing immune cells to circulate more efficiently throughout the body and fight infections more quickly. Exercise also helps reduce stress, which can weaken the immune system. Outdoor activities also offer the benefit of fresh air and sunlight, supporting vitamin D production and further strengthening the immune system. Parents should ensure that their children get enough physical activity every day, whether through sports, outdoor games, or simply playing around.
Strong immune system in children: hygiene and germs
Hygiene and contact with germs play a crucial role in developing a strong immune system. On the one hand, good hygiene is important for minimizing the risk of infections and protecting health. Regular handwashing and avoiding harmful germs are key measures for preventing illness.
On the other hand, some contact with germs is necessary for the immune system to learn to recognize and fight them. Children who grow up in an overly sterile environment may develop a less well-trained immune system because they have fewer opportunities to build up natural defenses against everyday pathogens. A balanced level of hygiene combined with natural contact with germs, such as when playing outdoors, supports the healthy development of the immune system and prepares it to respond effectively to various threats.
Vitamins and minerals to strengthen the immune system
Certain vitamins and minerals are particularly important for children’s immune systems. Vitamin C and vitamin D play a central role in strengthening the body’s defenses and protecting against infections. Vitamin A supports the skin and mucous membrane barrier, the first line of defense against pathogens. Minerals such as zinc and iron are also essential, as they support immune cells in their function and help combat inflammation. You can find more information about the most important vitamins for children and minerals for children in the respective blog articles.
The role of nutrition in the immune system of children

Diet plays a crucial role in strengthening children’s immune systems. A balanced diet rich in vitamins such as A, C, D, and E, as well as minerals such as zinc, iron, and selenium, supports the normal function of the immune system. These nutrients are important for strengthening the body’s defenses and preventing infections. Especially during flu and cold season, it is important to ensure an adequate supply of these nutrients.
Micronutrients such as vitamins and minerals are essential for immune defense, while macronutrients such as proteins, fats, and carbohydrates support overall health and growth. If children do not get enough nutrients from their diet, this can weaken the immune system and increase susceptibility to infections.
You will soon find more details and well-founded studies in a new article about the role of nutrition in children’s immune systems.
Are dietary supplements useful for strengthening the immune system?
Whether dietary supplements to strengthen the immune system are beneficial depends on the child’s individual situation. Generally, nutritional needs should be met through a balanced diet. Dietary supplements can be a useful addition in certain situations, for example in cases of a confirmed nutrient deficiency, an increased need, or when a child does not like eating vegetables and is therefore missing important vitamins and minerals. Individual advice from a doctor or nutrition professional can be helpful in making the best decision for your child’s health.
Discover our vitamin gummies:
» Have you already seen our Multivitamins for children guide? In this comprehensive guide, our wowtamins team, made up of parents and experienced experts, gives you an honest and well-founded overview of the need for dietary supplements for children.
Home remedies and immediate measures to support children’s immune systems
To support the immune system and To strengthen children’s immune defenses in the long term, parents can turn to various simple measures:
- Sufficient sleep: A regular sleep schedule promotes recovery and strengthens children’s immune systems overnight.
- Exercise in the fresh air: Regular exercise increases the number of immune cells and strengthens the immune system.
- Good hygiene: Regular handwashing reduces the spread of germs and relieves the immune system.
- Change toothbrushes regularly: This also prevents the spread of germs within the family.
- Do not create a sterile environment: Contact with natural germs is important for the development of the immune system.
- Sauna visits: Support the immune system through alternating exposure to heat and cold.
- Avoid passive smoking: Protects the airways and reduces the risk of infections.
- Caution with antibiotics and fever-reducing medications: Use only for bacterial infections to prevent the development of resistance.
By combining sufficient sleep, a healthy diet, exercise, and good hygiene, parents can easily and effectively support their children’s immune systems and help them stay healthy and resilient.
If you want to learn more about home remedies for strengthening the immune system, look forward to our blog article on the topic!
Reducing children’s stress levels to protect the immune system
Last but not least, stress can weaken children’s immune systems and make them more susceptible to illness. To reduce stress levels, it is important for children to have regular periods of rest and get enough sleep. Activities such as playing, reading, or spending time in nature can help reduce stress. A stable and supportive home environment where children can talk about their feelings is also essential. Parents should ensure that their children’s daily routines are not overloaded and that they have enough free time to relax, in order to protect their immune systems and promote their overall health.



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