5 Foods To Avoid If You Want To Boost Your Immune System

5 Foods To Avoid If You Want To Boost Your Immune System

You already know that keeping your immune system strong and healthy is essential for warding off infections and other health challenges before they start. These include viruses, bacteria, and parasites.

What is bad for your immune system? Unhealthy food aggravates and worsens the immune system, which will lead to almost all autoimmune diseases and chronic inflammation. When your diet is off, your immune system is off. 

If you’re looking for ways to prevent infections, colds, the flu, and ease uncomfortable inflammation, get rid of these foods. 

Diet soda

Does diet soda affect your immune system? Yes, research hints that your body reacts to the artificial sweeteners such as aspartame, sucralose, and saccharin in diet soda, in ways that may harm your immune system. Besides, diet soda may increase the risk of obesity, type 2 diabetes, stroke, and heart disease

So it would be fine if you kicked your regular soda habit away and replace it with healthy teas like lemon tea, ginger tea, and raspberries tea. All this tea can enhance immunity. 

Fast food

Fast foods are so high in salt, unhealthy fat, and low in nutritional value, all of these are sabotaging your immune system. According to researchers at the University of Bonn, your body tacks fast food like an infection, due to high-fat and high-calorie, over time, making your immune system to be aggressive. If you need a healthy immune system, you may want to eliminate fast foods from your diet. 


Too much sugar plays a leading role in the destruction of selenium in the body, which is necessary for a healthy immune system. According to the HealthLine, selenium helps lower your oxidative stress in the body, which reduces inflammation and improves immunity. Also, excessive sugar intake causes blood sugar level rises, which significantly reduces the ability of white blood cells to combat viruses and bacteria. Therefore, try your best to decreases sugar intake per day.

Quit or cut back on coffee

Too much caffeine in coffee can decrease the ability of your immune system to fight infections. Excessive amounts of coffee can also mess up your sleeping function, cause anxiety, irritability, headaches, nervousness, and even rapid heartbeat. All this harms your immunity. In order not to damage your immune system, stop or limit yourself to a maximum of one cup of coffee per day, or substitute one cup of coffee with one cup of antioxidant-rich herbal tea.

Quit alcohol

Drinking a lot of alcohol can weaken your immune system, could make you much more vulnerable to viruses, and also affect your white blood cells that protect your body against both infectious disease and foreign attackers. Besides, according to studies, acute binge drinking affects the function of your digestive tract, lungs, liver, and upper respiratory system. All this is pointing to an increased risk of pneumonia, cancer, and other inflammation. Not only that, alcohol will screw up your sleep cycles, which is closely related to your immune function. If you want a healthy immune system, cut down alcohol, or stop drinking altogether.