[KongchangAI]
Unverified85% confidenceFactTime unknown

MK-7型K2(发酵纳豆来源)半衰期长达3天,每日一次即可维持血药浓度;MK-4型半衰期仅几小时需多次服用,选购K2应认准MK-7标注

1
Sources
85%
Confidence
Long-term
Relevance
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Stable URI
https://kongchang.com/claim/203629
API
curl https://kongchang.com/api/v1/knowledge/claims/203629
MCP
get_claim(id=203629)