I also asked e same question before but I am afraid there’s no replacement of food for fish oil pill. As e fish oil pills contain e most omega extracted.. Try asking your gynae if he/she has a Low odour fish oil pill?
You can try Nordic Naturals brand, there's a strawberry version which is much easier to take and the pills are smaller also.If not you can also try children omega gummies but need to increase the dose 😁
Eat Mackerel /Salmon .Herring / Oysters
Eat extra omega 3 foods and vegetables