A new clinical trial has revealed that a daily dose of vitamin D3 and vitamin K2 MK-7 can help improve symptoms of post-COVID-19, commonly referred to as long COVID. The single-site randomized controlled study used a vitamin K2 MK-7 ingredient supplied by Balchem (K2VITAL MCT). The study confirms the anti-inflammatory properties of vitamin K2 and D3 in addressing long COVID, highlighting the potential to fill a critical gap that could have global applications. It builds on previous research that found the risk of long COVID increases with low levels of vitamin D.