Do not eat fish oil in combination with endives and spinach?

Question:
I’ve heard that eating fish oil in combination with dairy products and vegetables (such as spinach and endives) is not good for you. Is that true?

Answer:
We are not aware of any negative interaction between fish oil and dairy products or vegetables.

There are some people who claim that you shouldn’t eat certain combinations of foods because the digestive system digests them in different ways. For instance, proteins should stay longer in the stomach while carbohydrates can pass fairly quickly through the small intestine. My take is that you can eat various foods together as long as your stomach and intestines do not resist.