1. The Role of Immunity in Children
Immunity plays a crucial role in children's health. It acts as a protective barrier against the invasion and attack of bacteria, viruses, and other harmful agents.
Immunity Directly Influences Children's Development: From the early years, immunity has a direct impact on children's development. Strong immunity means good health for children. Balanced development in children is ensured through optimal physical growth and development compared to children with weaker immunity.
Immunity Protects Children from Various Diseases: Children's immunity acts as a solid barrier, enveloping them and protecting them from potential disease-causing agents such as bacteria, viruses, etc. This also provides a solid foundation for optimal future development in children.

2. Reasons for Children's Weakened Immunity
There are various reasons contributing to the weakening of children's immunity over time. Parents should understand these factors to find ways to improve and optimize their child's immunity.
Weak Immune System, Low Immunity: When a child's immune system is compromised, their immunity is also affected. At this point, the child's body has little to no ability to defend against or resist the invasion of potentially harmful agents.
Poor Digestion: The majority of the immune system resides in the digestive system of the body. Therefore, when immunity is compromised, the digestive organs often react first. Poor digestion or abnormal digestive issues are signs of weakened immunity.
Facial Appearance, Skin, Activity Level: Parents should observe their child's outward appearance and playful activities. Any noticeable differences in facial appearance, skin condition, or reduced agility may indicate issues with the child's immunity. Typically, when a child's immunity declines, they may lack a bright complexion, their skin may appear dull, and their activity level may be restricted.
Loss of Appetite, Picky Eating, Poor Appetite: Children may exhibit signs of loss of appetite, picky eating, or dislike for food when their immunity is compromised. This significantly affects the child's physical growth and development.

3. 7 Dangerous Diseases When Children Lack Immunity
One of the consequences of children lacking immunity is that they are prone to contracting dangerous diseases. Here are 7 dangerous diseases that children are susceptible to when they lack immunity.
Respiratory Diseases: There are various respiratory illnesses, with pneumonia being the most severe. This disease can lead to a high mortality rate with unpredictable complications. It can quickly progress to more dangerous conditions such as sepsis, effusion, edema, and respiratory failure.
Diarrheal Diseases: In developed countries, diarrhea is the leading cause of death in children. This disease disrupts digestion, leading to malnutrition and significantly weakened immunity in children. Without timely treatment, it can result in death.
Measles: Children with weak immunity are also susceptible to dangerous measles. It is one of the diseases that significantly increases the risk of mortality in children.
Hand, Foot and Mouth Disease, Meningitis: Although these diseases may seem simple at first, they can lead to severe complications. Death due to these diseases is not uncommon. The attack of the virus causing these diseases can result in new and extremely dangerous conditions such as encephalitis and meningitis.
Contracting Superbugs: When children have a high fever that cannot be reduced, there is a risk of oxygen deprivation to the brain, leading to seizures and brain damage resulting in disabilities.
Dengue Fever: This disease currently has no preventive vaccine and the consequences of contracting it are extremely dangerous. It can lead to organ failure, cerebral hemorrhage, posing a high risk of death if not controlled.

4. How to Boost Immunity in Malnourished Children?
There are several ways to boost immunity in malnourished children. You can consider the following methods:
Breastfeeding: The nutrition in breast milk provides a natural immunity boost for the child's well-being.
Introduce Fruits and Vegetables into Meals: Incorporate these foods into the child's daily diet to enhance immunity improvement.
Get Enough Sleep: Ensuring adequate sleep for children is also a way to optimize their immunity. Early Exercise: Increasing physical activity makes the body more flexible, thereby improving immunity.
Sunbathing for Kids: Besides incorporating foods rich in vitamin D for children, exposure to natural sunlight is good for nutrient absorption, metabolism, and enhancing natural immunity in the body.
Provide Foods Rich in Probiotics: Foods beneficial for the digestive system contribute to improving the immune system and enhancing immunity for children.
5. TOP 12 Formula Milk Brands to Boost Children's Immunity
For infants, breast milk is always the best source of nutrition throughout their development. From the age of 6 months, as babies start weaning, they need to be supplemented with other essential nutrients from formula milk, baby food, vitamin supplements, etc., to support comprehensive development. Here is a list of 11 formula milk brands to boost immunity that mothers can choose for their children:
5.1 Colosmulti 100 Plus Non-Milk

Price: 650,000 VND per box 90 sachets x 1.5g
Buy Colosmulti Biotic milk at Shopee | Lazada | Tiki
5.2 Goodhealth Colostrum Non-Milk
Goodhealth Colostrum Non-Milk is enriched with nutrients. The product provides natural antibodies for children, thereby enhancing immunity optimally. Children will be able to reduce illness and prevent the intrusion of disease-causing agents. The digestive system of children is also improved, minimizing the occurrence of intestinal diseases common in children. This is a type of milk that mothers should choose to boost immunity for children.

5.3 Friso Prestige Milk for Comprehensive Development of Babies
Friso Prestige is a premium product with the first and only formula derived from rich essence of golden milk layer, providing essential nutrients for superior immunity and comprehensive development for babies. Accordingly, the golden milk layer possesses a breakthrough 3 golden points structure: Sn-2 Palmitate, Phospholipids, MCFA/SCFA help enhance immunity to fight against disease-causing agents, while protecting a healthy digestive system and promoting brain development.
The formula milk also contains valuable natural nutrients HMO & Alpha-lactalbumin (precious nutrients found in breast milk) that work to prevent adhesion and kill bacteria, thereby creating a comprehensive immune mechanism. The milk also has a naturally mild taste, suitable for children's palates. Therefore, mothers can confidently choose Friso Prestige for their beloved children to help them have a perfect start!
Currently, Friso Prestige milk is designed with formulas to meet the growth needs of children at different ages, including: Friso Prestige 1 (For children from 0 to 12 months old), Friso Prestige 2 (For children from 1 to 2 years old), and Friso Prestige 3 (For children from 2 to 6 years old).

Buy Friso Prestige milk at: Baby Store
- Frisolac Prestige 1: 977,000 VND per can 700gr.
- Frisolac Prestige 2: 939,000 VND per can 700gr.
- Friso Prestige 3: 889,000 VND per can 700gr.
5.4 Grand Noble Milk
The product provides over 40 essential nutrients for comprehensive child development. Particularly, the milk's ingredients also help strengthen the immune system of children, significantly improving their immunity over time. Therefore, this is a product listed in the top 10 best milk brands for children's digestive system. The milk also helps improve weight gain, optimizing brain development for babies.
5.5 Dielac Alpha Gold 4 Milk
Dielac Alpha Gold 4 Milk is one of the optimal immune-boosting milk options for babies. The product promotes brain development, weight gain, and enhances immunity for children from the early years of life firmly.
5.6 Morinaga Milk from Japan
If you're wondering which milk boosts immunity for your baby, Morinaga Japanese milk helps optimize nutrient absorption, protect the digestive system, enhance immunity, and promote comprehensive bone development for children, making it a choice not to be overlooked.
5.7 Nan Nga Milk
Nan Nga Milk is also one of the immune-boosting milk products favored by many parents. Its production formula ensures adequate nutrition for the proper growth and development of young children. Additionally, it improves the condition of the digestive system and enhances immune immunity for children to have a solid developmental foundation.

5.8 Glico Milk from Japan
Glico Milk from Japan is a milk line focused on natural ingredients, aiming for absolute product safety, containing a suitable amount of nutrients for the healthy development of young children, including both physical and mental aspects. Japanese Glico Milk does not cause constipation, protects the intestines, and enhances immune immunity for children naturally.
5.9 Hikid Milk
Not only ensuring the ability to improve height for children but Hikid milk also provides optimal nutrition for children. The nutritional content in milk helps children develop height, weight. At the same time, Hikid milk enhances and perfects the immune system in children.
5.10 Green Meadows Milk
The product is imported milk from Australia not only helps babies improve weight, height due to the high nutritional content of milk. Green Meadows milk helps babies develop intelligence, stabilize the digestive system. At the same time, the product also gradually improves and strengthens the immune system for children.
5.11 Diamond Newborn & Baby Milk
Diamond Newborn & Baby Milk ensures the provision of essential nutrients for the development of young children. The product enhances weight gain, height growth, and improves the digestive system of children from the early stages. Diamond Newborn & Baby Milk also provides optimal immune support for babies.
5.12 Nutrient Kao Milk
This is a product to optimize physical condition improvement for babies. The product's nutrients are produced to fit the child's development. Children have digestive system improvement to absorb nutrients and strengthen their immune system, enhancing resistance.
Parents rely on the actual condition of their child to choose the right immune-boosting milk product for their baby. This helps the baby not only develop a good physique but also has the ability to fight diseases optimally.