Frozen "immunity cubes" are rich in vitamins and nutrients designed to strengthen the immune system. The hashtag #ImmunityCubes has already gained more than 4.6 billion views on TikTok.

The recipe for the immunity cubes varies slightly from person to person, it usually contains some combination of orange, lemon, ginger, carrot, turmeric, raw honey, black pepper, coconut milk, coconut water and plain water. "Not only are they delicious and nutritious, they are so simple and easy to mix," cookbook author Nicole K. Modik said.