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Vitamin K2 — MK-7 subtypeNutrition library

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Vitamin K2 — MK-7 subtype

mcg · Vitamins

The long-half-life form of vitamin K2 (~3 days vs ~hours for MK-4) that sustains steady maternal carboxylation activity between meals.

Trimester focus

StageFor the motherFor the baby
First trimesterKeeps vitamin-K2 activity steady through the day rather than spiking after meals.Indirect benefit via stable maternal calcium-handling.
Second trimesterSustains osteocalcin/MGP activation as bone and vascular turnover rise.Supports a steady supply line for bone-protein activation.
Third trimesterMaintains steady K2 status through the highest-calcium-transfer stage.Supports continuous (not just post-meal) bone-protein activity.

Planning context, not medical advice — confirm supplement doses and screening (ferritin, 25-OH-D) with your healthcare provider.

Vitamin K2 — MK-7 subtype · Nutrition library