Thorne Vitamin D/K2 Liquid 500IU/100mcg, 30ml Saccharomyces boulardii but it's not a substitute

but it's not a substitute for finding out what's actually causing significant fatigue

Three reasons: (1) active-form B vitamins (methylated folate

They can boost an under-active immune system and lower an over-active immune system

antibiotic-associated diarrhea

pylori infection

Thorne Vitamin D/K2 Liquid 500IU/100mcg, 30ml Saccharomyces boulardii but it's not a substituteThorne Research Vitamin D K2 Liquid Details Vitamin K2 is a series of molecules known as menaquinones, some of which are found naturally in fermented soybeans. Thorne Researchs vitamin K2 is MK 4, the most common and well studied of the menaquinones. Vitamin K2, working in concert with vitamin D, exerts a more powerful influence on bone than does vitamin K1.