These are all foods rich in nutrients that are very beneficial for the immune system. They are especially necessary for health at the end of the year when the weather is changing, according to the health information site Everyday Health.

Foods to eat to boost immunity at the end of the year include:

Orange

Oranges are a popular fruit that is high in vitamin C, which is essential for a healthy immune system. This citrus fruit not only tastes great, but it also helps protect against infections and stimulates the growth of white blood cells to fight harmful pathogens.

Blueberries

Blueberries are often considered a “superfood” due to their high antioxidant content. These small berries are rich in vitamins C and E, as well as other beneficial compounds that can boost the immune system. Blueberries also have anti-inflammatory properties that may help reduce the risk of chronic disease.

Tomato

Tomatoes are not only delicious, but they are also packed with nutrients that are essential for good health. They are an excellent source of vitamin C, which is known for its immune-boosting properties. Vitamin C helps support the production of white blood cells, which play an important role in fighting infection and disease.

Green tea

This list wouldn’t be complete without green tea. Green tea has long been touted for its many health benefits. The beverage is high in powerful antioxidants called catechins. Research has shown that catechins enhance immune function.

Additionally, green tea is rich in polyphenols that may help reduce inflammation in the body and protect against certain diseases.

Egg

Despite being inexpensive, eggs are one of the most popular and healthiest foods. A wealth of scientific evidence has proven the nutritional benefits of eggs.

In fact, eggs are a versatile food that can be enjoyed in many different ways. An egg is packed with nutrients, from protein, essential vitamins such as D, B6, B12, iron, potassium and many more.

Vitamin D is especially important at the end of the year, when the sun is less intense. Lack of exposure to sunlight reduces the skin's ability to synthesize vitamin D. Meanwhile, vitamin D helps regulate the immune system and promote overall health, according to Everyday Health.