Check interactions
Add your supplements, foods, meals — and any medications you take — to see how they interact. Findings are grouped by severity: what to avoid, what needs care or timing, and what actually works better together.
Add more (1/12)
Avoid
1 · Don't combine without medical guidanceVitamin K2 counteracts warfarin and can reduce its anticoagulant effect.
Why: Vitamin K regenerates clotting factors warfarin suppresses.
→ Only under prescriber guidance with INR monitoring.
Caution
5 · Combine carefully — read the noteVitamin D: Glucocorticoids (reduced vitamin D effectiveness)
Vitamin D: Anticonvulsants like phenytoin (increased vitamin D metabolism)
Vitamin D: Orlistat (reduced fat-soluble vitamin absorption)
Vitamin K2: Warfarin and other coumarin anticoagulants—may reduce anticoagulant effect; consistency is key
Vitamin K2: Some antibiotics (broad-spectrum) may reduce K2 production by gut bacteria
Monitor / Timing
1 · Usually fine — mind timing or watch for effectsVitamin D: K2 (complementary for bone and cardiovascular health)
