They mentioned that fish oil's benefits are usually noticed when you eat a lot of it. I used to do it and ending up shitting out fish oil.
While reading Udo Erasmus website I came across the following which may help. He is refering to veggy sources of Omega 3 but should apply to Omega 3 from fish sources .
http://udoerasmus.com/FAQ/FAQ2_en.htm
What is the maximum advisable dose of your oil blend?
I've seen as much as 10 tablespoons per day used in cases of cancer, AIDS, rheumatoid arthritis, and weight reduction. I once ingested 15 tablespoons in one day, and on another occasion, I had 17 tablespoons of the oil blend mixed in fruit juice for breakfast. I had no problem digesting it but I also wasn't hungry for the rest of the day.
In the beginning, you may want to start with smaller amounts and gradually increase to optimum levels which is approximately 1 tablespoon per 50 pounds of body weight; especially if you have a history of being on a low fat or a no fat diet, or if your liver is weak.
Should your liver be unable to handle the amount you are taking at any one time, you will feel heavy or become nauseous. If you took even more oil at this point, you would vomit. Why? The liver has to process the oils and fats you eat. If you exceed its processing capacity by taking more oil at any one time than it can handle, it will protect itself from overworking by making you hurl.
If you do become nauseous, you must begin with smaller amounts. How small? If you can't take three tablespoons, take one. If one is too much, use one teaspoon. If that's too much, take a few drops. If that's too much, take a lick. And if that's too much, take a whiff. But don't quit. Your body requires essential fatty acids in order to function and for you to live. Someone once asked me: Can I just think about it? And I said yes, because if you think about it, you will eventually end up taking a whiff.
So start small, and eventually increase the amount you take. Sometimes liver function is poor because of essential fat deficiency. Then you must give this organ time to recover. Build up liver capacity again by starting with small amounts of the precious essential fatty acids. Be gentle with yourself. Do what you can.
Can you get too much essential fat?
When you get more than 12-15% of total calories as n-3s, there is a fat "burn-off" based on increased metabolic rate. Other than exceeding liver capacity and getting nauseous, or not sleeping because of too much energy because you took it too close to bedtime, it doesn't appear so.