Fond,
Yah lor... The taste is stronger than chicken essence definitely. For me, I have never taken any chicken essence in my life even when my mum forced me to drink with a knife, I simply ignore. Only started when I start my IVF in June. The fish essence is so much stronger but it's worth it. Maybe I'm so used to taking Dr Zou's herbs prior to my IVF, so I think fish essence is ok no after taste but need to gulp more water.
If you are worried about the fishy taste, u can buy EYS ones. Cause I took EYS chicken essence but when I want to buy Fish essence they went out of stock so no choice got to get from Dr Zou. EYS chicken essence taste way better than the common brands so I believe their fish essence should be not that awful either.