PlainPill

Potassium vs Vitamin K2 for heart & lipids

Short answer: For heart & lipids, users rate them about the same: 92% report improvement with Potassium (12 reports) and 91% with Vitamin K2 (23 reports).

Potassium has 1,135 meta-analyses and 4,061 randomized trials on PubMed; Vitamin K2 has 36 and 99.

Based on 152 reports about Potassium and 697 about Vitamin K2. Not medical advice.

Potassium
Supplement
Vitamin K2
Supplement
Users say it helped68%helped58 reports · medium confidence72%helped125 reports · high confidence
Verdict
Mostly positive
Mostly positive
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs1,135 / 4,06136 / 99
Mainly used for
Heart & lipids
% reporting improvement
92% (12)91% (23)
Energy
% reporting improvement
92% (13)100% (7)
Mood
% reporting improvement
100% (5)93% (14)
Anxiety
% reporting improvement
83% (6)75% (4)
Sleep
% reporting improvement
100% (2)60% (5)
Common side effectshyperkalemia, stomach issues, heart palpitations, dizzinessheart palpitations, anxiety, palpitations, insomnia
Typical dose reported400 mg / daily75 mcg
Potassium
Latest review conclusion

We found strong evidence that antidepressants differ markedly in their physiological effects, particularly for cardiometabolic parameters. Treatment guidelines should be updated to reflect differences in physiological risk, but choice of antidepressant should be made on an individual basis, considering clinical presentation and preferences of patients, carers, and clinicians.

Lancet, 2025 ↗
What a user said
“I saw a research on how to fight high level of cortisol by combining magnesium and potassium before bed. I added in glycine to the mix. After that I started to sleep 4 hours then 5 then 6.”
Full Potassium 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