As the COVID-19 isolation becomes mandatory for most of us, those who are not vital in the health or economic system, we rely more and more on all kinds of nutrients and foods to stay healthy, as reported in a recent article. The lack of physical and diverse brain activity is depriving us of many healthy means. The COVID-19 Lockdown What\u2019s more, staying at home weakens our immune system, the most reliable shield we have against the deathly virus. So, it makes us just as frail in facing the contamination as those confronting it by higher exposure. Thus, we must take extra care of it. Our immune system relies on its structural antibodies. You can understand those antibodies by picturing them as medical staff exposed to coronavirus patients. They can\u2019t treat them empty-handed. They have an entire arsenal: two pairs of gloves, a mask, a robe, two bonnets, tall overshoes resembling top-boots, and medicinal glasses. When they enter a contaminated area, they look just like astronauts. And this is how your antibodies should look if they were to protect you from getting killed by COVID-19 infection. Best Nutrients and Foods to Boost Your Immune System Proteins Antibodies are also proteins. It doesn\u2019t mean that the fish, poultry, lean meats, soy foods, and the low-fat dairy product you ingest become antibodies. Food protein degrades to amino acids. Those amino acids serve as building blocks for new proteins. Fruits and vegetables The large specter of vitamins and minerals helps the antibody\u2019s strength, either by stimulation the body to produce them, by reducing the oxidative stress that weakens the immune system or by protecting different sensitive parts of your body. Like vitamin A protects the tissues of your respiratory system. And that\u2019s just an example. Good bacteria Don\u2019t think that bacteria are just a bad thing. Bacteria is part of our artificial organ called the microbiome, which is made of bacteria, archaea, protists, fungi, and viruses in our body. Its impact on the immune system is crucial. We need good bacteria to thrive to help our body fight with bad bacteria and viruses, such as the coronavirus causing COVID-19.