Add prebiotics and probiotics.
While the scientific jury is still out, there has been enough evidence to prove that prebiotics and probiotics could enhance your vaccine’s effectiveness.
So try to eat more fruits, vegetables, whole grains, yogurt, kefir, and fermented foods (like kimchi, sauerkraut, and kombucha) to give your gut bacteria a well-deserved boost.
Plain foods
Even if it’s rare, another side effect of the flu vaccine is nausea. That’s why it’s never really a bad idea to be prepared for an upset stomach.
Pantry staples such as saltine crackers, pasta, and rice are all wise choices if you’re dealing with nausea, and so are bananas and avocados. If you’re feeling a bit “off” after the flu shot, make sure you eat something substantial.
