Hello,
Thank you for choosing DoctorSpring.
I have discussed your concern with our team Anaesthesiologist (and hence the slight delay in my reply).
Omega 3 FA Supplements, Ginger and Garlic generally will not do any cause any harm or complication during Surgery. Still since the data is not very clear on this it is better that you stop taking these supplements from now on. (You still have 48 hours for surgery I guess)
Some Hospitals have an institutional policy that prevents patients taking these supplements. But most hospitals do not. For example at our centre we do not ask about ginger , garlic or Omega 3 supplements. Since your nurse did not specifically ask for it I assume there is no particular policy regarding this in your hospital. So do not worry. Moreover these are common component in our food items and usually they do not do any harm.
All the best for surgery.
Hope this helps
Feel free to ask followups.
Thank you