Hello,
Thank you for choosing DoctorSpring. The "Proprietary Blend" in this capsule ingredients are not well studied or evaluated in Breast feeding women. So there is a possibility of danger (although remote) to the baby and it is better avoided.
If you are healthy and taking a nutritious diet Vitamin supplements are not needed. You may take a Calcium + Vitamin D3 supplement though.
Hope this helps
Please feel free to ask followup questions
Thank you