Vitamin K2 MK4 vs Vitamin K2 MK7 for energy
Short answer: For energy, users rate them about the same: 50% report improvement with Vitamin K2 MK4 (2 reports) and 50% with Vitamin K2 MK7 (2 reports).
Vitamin K2 MK4 has 0 meta-analyses and 0 randomized trials on PubMed; Vitamin K2 MK7 has 0 and 1.
Based on 29 reports about Vitamin K2 MK4 and 65 about Vitamin K2 MK7. Not medical advice.
| Vitamin K2 MK4 Supplement | Vitamin K2 MK7 Supplement | |
|---|---|---|
| Users say it helped | 62%helped10 reports · few reports | 52%helped15 reports · few reports |
| Verdict | Mostly positive | Mixed |
| Research | DResearch: None | CResearch: Limited |
| Meta-analyses / RCTs | 0 / 0 | 0 / 1 |
| Mainly used for | ||
| Common side effects | fatigue, cold extremities, high blood, delayed reflexes | heart palpitations, anxiety, heart rhythm, shortness of |
| Typical dose reported | 45 mg / daily | 100 mcg / daily |
Vitamin K2 MK4Full Vitamin K2 MK4 profile →
What a user said
“I ran out of my K2 MK4 drops for the first time in a couple years since I've had long-covid and I started to feel extra worse after a couple weeks.”
Vitamin K2 MK7Full Vitamin K2 MK7 profile →
What a user said
“I took vitamin K2 MK-7 and magnesium. After a few months I started to notice the difference and reversed about 30 years of previous decline in erectile function.”
Related comparisons
Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate