PlainPill

Vitamin K vs Vitamin K2 for mood

Short answer: For mood, more users report improvement with Vitamin K — 100% of 3 reports, versus 93% of 14 for Vitamin K2.

Vitamin K has 1,080 meta-analyses and 714 randomized trials on PubMed; Vitamin K2 has 36 and 99.

Based on 154 reports about Vitamin K and 697 about Vitamin K2. Not medical advice.

Vitamin K
Supplement
Vitamin K2
Supplement
Users say it helped77%helped20 reports · medium confidence72%helped125 reports · high confidence
Verdict
Not enough data
Mostly positive
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs1,080 / 71436 / 99
Mainly used for
Heart & lipids
% reporting improvement
67% (3)91% (23)
Mood
% reporting improvement
100% (3)93% (14)
Energy
% reporting improvement
—100% (7)
Libido
% reporting improvement
—80% (5)
Sleep
% reporting improvement
—60% (5)
Common side effectsarrhythmia, blood clottingheart palpitations, anxiety, palpitations, insomnia
Typical dose reported120 mg75 mcg
Vitamin K
Latest review conclusion

The certainty in the evidence supporting the perioperative management of anticoagulants remains limited. No high-quality evidence exists to support the practice of heparin bridging during the interruption of VKA or DOAC therapy for an elective surgery or procedure, or for the practice of interrupting VKA therapy for minor procedures, including cardiac device implantation, or continuation of a DOAC vs short-term interruption of a DOAC in the perioperative period.

Chest, 2023 ↗
What a user said
“Doctors wanted to put me on anti-depressants...but vitamin D & K gave me the energy to get out of bed and make changes.”
Full Vitamin K profile →
Vitamin K2
Latest review conclusion

The results of this meta-analysis seem to indicate that VK2 supplementation has a positive effect on the maintenance and improvement of BMD LS in postmenopausal women, and it can also reduce the fracture incidence, serum uc-OC levels and the ratio of uc-OC to cOC. In conclusion, VK2 can indirectly promote bone mineralization and increase bone strength.

Front Public Health, 2022 ↗
What a user said
“i believe k2, B vitamins, and amino acids L carnitine and glutamine made a difference in my skin.”
Full Vitamin K2 profile →

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