You may need to triple or quadruple that amount of fish oil. Hear me out.
Fish oil is a blood thinner, but if you are not on medication, then strive for a balance between omega 6 and 3 in the diet, as several sources of information suggest that human beings evolved on a diet with a 1:1 ratio of omega 6 to omega 3 essential fatty acids, whereas in Western diets the ratio is 15/1 to 16.7/1
Due to the fact that we evolved on a diet with a ration of close to 1:1, it would be highly unlikely that this diet would pose harm as our bodies have "grown accustomed" to having this balance.
Further if taking Omega 3 for a particular health concern "A ratio of 2Ã¢??3/1 suppressed inflammation in patients with rheumatoid arthritis, and a ratio of 5/1 had a beneficial effect on patients with asthma, whereas a ratio of 10/1 had adverse consequences.
These studies indicate that the optimal ratio may vary with the disease under consideration."
From the article "Several sources of information suggest that human beings evolved on a diet with a ratio of omega-6 to omega-3 essential fatty acids" http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VKN-46RF1KR-4&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c729c35ffeb09ce04e332f3290725463
So perhaps 3 to 4 times this amount (30 to 40 grams per day of fish oil) would be a very reasonable recommendation. That would equate to only 360 cals from fat, with the majority from omega 3s.
If you're taking in 3600 calories, and are balancing omega 3 and 6, then this amount of fish oil would constitute a fairly reasonable % of fat in the diet, from a macronutrient ratio perspective.