Hi Ackles78 and thank you for your post.

I am sorry that you are experiencing side effects from your cancer treatment. I appreciate you want to do all you can to support your health.

As we are not involved in your medical care we are always wary of suggesting any supplements in case there are any interactions.

We would suggest you speak with either your consultant, breast specialist nurse (CNS) or GP. Pharmacists are usually the best people to advise about what is safe to take in terms of supplements alongside any cancer treatment drugs or other medication.

Most daily multivitamin supplements are ok, rather than single vitamins that are then taken in higher than the recommended RDA doses.

We have some general information about  vitamins and diet supplements  which you may find helpful. Also, the NHS website has information on individual vitamins and minerals.

This is what the NHS say about taking supplements with letrozole.

You may get some tips and advice about brain fog on our webpage  Coping with cognitive changes.

Wishing you all the very best as you continue with your treatment.

 Please get back to us if you need any more information or support.  You may find it helpful to talk things through with one of the nurses on our helpline.  The number to call is Freephone 0808 800 4040 and the lines are open from 9am till 5 pm Monday to Friday.

 Kind regards

Tina