In the morning, we are busy rushing to work, have a quick lunch of convenience store triangle kimbap or delivery,
finish up the work that has piled up in the evening, come home, watch Netflix, and barely fall asleep at 2 a.m.
Most modern people live a life that is far from a “healthy life.”
When we also take care of our families and maintain a social life, it is only natural that our immune system sends a red signal.

How to increase immunity? In fact, there are golden rules that everyone knows.

Get 8 hours of sleep, eat a variety of vegetables, exercise regularly, and avoid stress.But is it realistically possible to follow all of these perfectly?
Let alone exercise regularly, it’s hard to even walk 10,000 steps a day.
😢 If you’ve ever wondered, “What on earth should I eat?” in front of a pharmacy or drug store’s nutritional supplement section, or amidst a flood of advertisements on social media, pay attention!

Healthcare specialist company Nutricare will introduce you to five scientifically proven key ingredients that help boost immunity. We will also look at how to effectively consume them and lifestyle habits.

1. Zinc
· Role: An essential mineral for the production and functioning of immune cells.
If deficient, the immune response is weakened and susceptibility to infection increases.
· How to consume: Zinc is abundant in oysters, beef, nuts, whole grains, etc., and can be supplemented with health functional foods to meet the daily recommended intake (8–11 mg).
· Lifestyle tips: Since zinc is not stored in the body, it should be consumed consistently every day, and caution should be taken with high-fat diets and alcohol, as these can interfere with zinc absorption.

2. Vitamin C
· Role: Protects immune cells through powerful antioxidant action and helps control inflammatory responses during infection. Enhances defense against external invasion by increasing the function of white blood cells.
· How to consume: It is abundant in fruits (especially citrus fruits, kiwi, strawberries) and vegetables (broccoli, bell peppers, etc.), and 500–1000 mg is appropriate as a health functional food.
· Lifestyle tips: It is important to consume frequently and consistently because it is not stored in the body.
It can reduce the burden on the stomach if you consume it right after a meal rather than on an empty stomach in the morning.

3. Vitamin D
· Role: Involved in the activation of immune cells and helps with defense responses against viruses and bacteria.
There are also studies that show that low vitamin D levels increase the risk of respiratory infections.
· How to consume: Although it is synthesized in the skin through sunlight, modern people who spend a lot of time indoors need dietary supplements. In addition to salmon, egg yolks, and fortified milk, a supplement of 1000–2000 IU per day is recommended.
· Lifestyle tips: It is recommended to expose yourself to the sun for 15–20 minutes between 10:00 AM and 2:00 PM, and since it is a fat-soluble vitamin for absorption in the body, it is recommended to take it after a meal.

4. Probiotics
· Role: Intestinal health is immune health. Beneficial intestinal bacteria protect the intestinal mucosa, where more than 70% of immune cells are located, and play a key role in maintaining immune balance.
· How to consume: It is recommended to choose fermented foods such as kimchi, yogurt, and soybean paste, or health functional foods with confirmed strain numbers and functions. In particular, products containing patented lactic acid bacteria strains are recommended.
· Lifestyle tips: You can achieve synergy by taking prebiotics (such as oligosaccharides) together to help beneficial bacteria settle. Taking probiotics when taking antibiotics helps restore intestinal flora.

5. Selenium
· Role: Prevents damage to immune cells through powerful antioxidant action, and enhances the cell’s defense ability in case of viral infection. Selenium deficiency is associated with a weakened immune system.
· How to consume: It is abundant in Brazil nuts, fish, eggs, etc., and can be supplemented at a level of 55 mcg per day in the form of a health functional food.
· Lifestyle tips: Since side effects may occur if consumed excessively, it is important to check the daily intake when selecting a product.

Nutricare’s immune care solution — Talking about the science in the product.

Immunity enhancement is not a matter of consuming fragmented ingredients, but rather comes from the harmony of various body systems such as intestinal health, metabolic efficiency, antioxidant balance, and strengthening the skin barrier. Nutricare understands this complex immune mechanism and has developed high-functional products based on it.
Let’s take a look at how Nutricare’s representative health functional products and their ingredients can help with immune health from a scientific perspective.

1. MD Recipe Probiotics — Intestinal health is the starting point of immunity

· Key ingredients: 17 types of probiotics including 7 types of patented lactic acid bacteria, fructooligosaccharides (GOS), zinc, L-proline
· Immune relevance: Intestinal microflora affects both innate and acquired immunity.
Lactic acid bacteria increase the proportion of beneficial intestinal bacteria, prevent the invasion of pathogens, and alleviate inflammatory responses through T cell regulation. In particular, zinc is directly involved in the proliferation of immune cells, and prebiotics help the proliferation and establishment of lactic acid bacteria.

2. Reverse Enzyme — Digestion and Metabolism-Based Immunity Assisted by Enzymes

· Key Ingredients: Various Digestive Enzymes (Protease, Amylase, Lipase, etc.), Plant-Based Fermented Ingredients
· Immune Relevance: Digestive enzymes go beyond simply helping to break down food, and they play an important role in increasing the absorption rate of nutrients and sufficiently supplying resources for immune cells. Enzyme metabolism is also involved in liver detoxification, immune protein synthesis, and lymphatic circulation, and in particular, protein-decomposing enzymes help regulate the body’s inflammatory immune response.

3. Reverse Enzyme Berry Beauty Collagen — Protein is the basic structure of immunity

· Core ingredients: low-molecular collagen peptide, vitamin C, zinc, hyaluronic acid
· Immune relevance: Collagen is a protein that constitutes the first line of defense against external pathogens such as skin, barrier, and blood vessels.
In particular, sufficient collagen can supply amino acids necessary for immune antibody and cytokine synthesis.
In addition, vitamin C plays an important role in white blood cell activation and antioxidant defense as well as collagen synthesis, and zinc is also essential for maintaining the function of immune cells.

4. Reverse Enzyme Retinol — Dual care for antioxidant and skin immunity

· Key ingredients: Retinol (vitamin A), vitamin E, astaxanthin, plant-derived antioxidant complex
· Immune-related: Vitamin A forms a first defense barrier that fights off pathogen invasion by keeping the skin and mucous membranes healthy, and is deeply involved in immune cell differentiation (especially T cells and B cells). In addition,
astaxanthin and vitamin E, which are powerful antioxidants, help prevent damage to immune cells caused by oxidative stress, and are also effective in alleviating inflammation.

Immunity is not created overnight.
Immunity must be firmly established through long-term management, balanced intake of nutrients, and continuous habits. Nutricare’s product line is not just a simple supplement, but part of a health strategy that scientifically designs the foundation of immunity.

Health functional food B2B partnership with Nutricare

Nutricare provides health functional food solutions optimized for customer needs through OEM/ODM collaboration with domestic and international partners. We have established a one-stop full-line system from planning to raw material proposal, formulation development, design, and production, which can enhance product perfection and market competitiveness.

▲ Development of science-based functional raw materials
▲ Possession of manufacturing facilities dedicated to health functional foods
▲ Thorough quality control in compliance with the standards of the Ministry of Food and Drug Safety
▲ Product planning capabilities reflecting trends and market analysis
▲ Know-how on overseas export experience

Nutricare is your trusted partner in the health functional food market.

📌 Product and business inquiries:
icehoon@nutricare.co.kr