5 Supplements to Strengthen Your Immune System

By September 27, 2022 No Comments

The immune system is an amazing network of cells, proteins, and organs that work together to defend your body against viruses, bacteria, fungi, and other threats. Stress, nutritional deficiencies, lack of sleep, inactivity, and many other factors can put a strain on your immune system, reducing its ability to fight infection. Here are five supplements that have been shown to help strengthen your immune system.

Vitamin D 

Studies have found that taking vitamin D supplements can help to protect against respiratory infections. The body usually produces its own vitamin D when the skin is exposed to sunlight. However, many people do not produce enough of this essential vitamin to meet their body’s needs. If you work in an office or spend most of your day indoors, you may even have a vitamin D deficiency, which could make you more vulnerable to infection. 


Zinc is a mineral that plays an essential role in maintaining a healthy immune system. Many over-the-counter remedies for colds, sore throats, and flu contain zinc, as zinc deficiency is a known cause of respiratory infections. Supplements can help to prevent, as well as treat, common respiratory problems. Although zinc supplements are safe for most people, you shouldn’t take more than 25 mg of zinc a day, as high doses can interfere with the absorption of other nutrients.


Echinacea is a popular herbal remedy used to treat a range of health problems, including colds and flu. It is well known for its immune-boosting effects and can help to protect against common viruses and infections. Echinacea is also high in antioxidants and is thought to reduce inflammation in the body. Most people can take echinacea supplements safely, although a small number of people experience mild side effects, such as stomach aches or itching skin.

Vitamin C 

Vitamin C is an antioxidant that has long been used to prevent and treat infections. It is essential for healthy immune function and to protect against oxidative stress. Vitamin C supplements are often combined with zinc, as these two nutrients work together to enhance the immune system. Although high-strength vitamin C supplements are generally considered safe, some experts recommend supplementing with no more than 1,000 mg a day, as too much vitamin C can cause stomach pain and diarrhea.


Garlic has long been used as a natural immune booster. Properties found in garlic can help to protect the respiratory system, preventing and reducing the severity of colds, flu, and other infections. Garlic also contains compounds that improve the body’s ability to fight disease. While it’s possible to derive some benefits from eating fresh garlic, many people dislike the taste, and using supplements enables you to take higher strength doses.

The immune system works hard to keep you healthy and protect against disease, viruses, and infections. Stress, poor nutrition, and many other factors can impair immune function. Nutritional supplements, including vitamin D, zinc, echinacea, vitamin C, and garlic, can help to strengthen your immune system.