Cold plunges and kombucha: Do winter wellness trends really work?

Discover if popular winter wellness trends like cold water swimming, kombucha, and supplements truly help boost your immune system. Cold water swimming may provide benefits through stress reduction and social interactions, while kombucha's link to immune system improvement lacks conclusive evidence. Supplements like Vitamin C and multivitamins may not significantly prevent colds, but Vitamin D could benefit those with low levels and respiratory issues. Ultimately, the most effective way to boost immunity in winter is through vaccinations.