Many cells in the immune system, especially the phagocytes and t-cells need vitamin C to carry out their duties. When the body is lacking in vitamin C, it has a lower resistance to harmful pathogens and you are more susceptible to getting sick.

Just like vitamin C, a lack of Zinc can make you more susceptible to illness. Researchers discovered people with zinc deficiencies have drastic immune dysfunctions. Zinc synthesizes DNA, controls the barrier of the skin, regulates hundreds of enzymes, and is crucial for the development and function of immune cells.

Loaded with antioxidants and vitamins, elderberries are great for supporting healthy cellular function and thus a boosted immune system. They are also known to have natural, anti-viral properties.

Echinacea is a popular immune stimulant found in North America. It is known to support a healthy immune response.

Vitamin A plays a big role in the growth, development, regulation, and protection of the body’s immune cells. It is also known to have anti-inflammatory properties that support a healthy immune response.

The three B Vitamins (Thiamine, Riboflavin, Niacin) work in synergy to boost the immune system promoting cell metabolism and cell health. In addition, they convert food to energy which keeps the body energized and ready to fight dangerous pathogens.

An essential amino acid that works as a building block in the body, L-Lysine is crucial for cell growth, tissue repair, and the production of antibodies, hormones, and enzymes. Studies show L-lysine may block and slow down harmful cells from replicating in the body.

Copper is required by the immune system to carry out T-cell growth. People with copper deficiency have an increased susceptibility to infection. Those who take copper in supplement form have an increased immune response.

Periwinkle is a flower native to Asia. Studies show it produces two potent naturally occurring compounds that protect the body/immune system from outside hazards.

Brimming with an antioxidant known as beta carotene, broccoli, strengthens the body’s immune response by supporting cellular growth and activity. In a double-blind study, elderly subjects given beta carotene, selenium and zinc had fewer issues associated with a weak immune system.

High in a compound called selenium mustard seeds are a natural antioxidant that works by lowering oxidative stress in your body. This drastically reduces inflammation and enhances the immune system response. Selenium deficiency is linked to a week immune response.

A popular herb that has been used in Chinese medicine for centuries, astragalus root is known to contain powerful immune-boosting compounds. Studies show it increases your body’s production of white blood cells which. Stregnthen the immune system. It also contains antioxidants, which protect cells against damage.