Although HERBIN black walnut shell extract is a food supplement and not a medicine, plant extracts can interact with the body in different ways depending on your state of health and the products you take.
Consulting a specialist is recommended in the following cases:
- Pregnancy and breastfeeding. The effects of concentrated plant extracts on the unborn child and the breastfed baby have not been sufficiently studied, so during these periods any supplements are best agreed with a doctor.
- Allergy or sensitivity to nuts. Black walnut belongs to the walnut family. People with a known nut allergy should be careful and seek advice before taking it.
- Taking medicines. Plant extracts containing tannins and other plant compounds could, in theory, affect the absorption of some medicines. If you take medicines regularly, check compatibility with your doctor or pharmacist.
- Chronic conditions. If you have liver, kidney or gastrointestinal disease, it is worth getting professional advice before adding any new supplements to your diet.
This is not a reason to give up the supplement but a sensible precaution: a specialist will help you judge how appropriate the product is in your particular situation.