Can anyone help me understand fish oil supplements????

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Lab/Rottie/Chow/- Shepherd Mix!
Barked: Tue Aug 14, '12 5:03pm PST 
I got the dog Omega 3 supplements. (In the past, I've bought human fish oil supplements, but I was in the pet store and just grabbed them today. Olive has had hot spots lately and I thought I'd get her back on fish oil.)


The nutritional data says:

Ingredients: Fish oil, dl-alpha tocopherol and gelatin.

Per 1000 mg gel cap:

Linoleic Acid (Omega 6) - 20 mg
Vitamin E - 5 IU
Omega 3 - 245 mg
EPA - 140 mg
DHA - 90 mg
Omega 9 - 100 mg


The math doesn't make sense to me.

First, I get that the amount in a fish oil capsule DOES NOT equal the amount of Omega 3s.

But - isn't EPA + DHA = Omega 3?
So, shouldn't the total for Omega 3s be 230mg, NOT 245mg? Even if I count O3s, EPA & DHA together I get 475mg (?)...

The capsule is listed as 1000mg, but the mg's don't add up to 1000mg, they add up to 595 (not including the Vitamin E whose units are in IU)... ???

Finally, it says I should give dog 1 capsule for every 15 lbs of body weight. Olive is 55 lbs (rounded to 60 lbs), so I give her 4 capsules. Isn't that 4,000 mg and 980 mg of Omega 3/day? Is this enough/too much?
What should I be giving her every day?

Can anyone help me with this math?

I'm triple- superior MAD- now!
Barked: Tue Aug 14, '12 6:34pm PST 
There are a lot of omega 3 fatty acids. The two listed are considered the most important and others aren't listed. That is probably why it doesn't add up to 1000 mg as well, there are fatty acids that don't need to be listed in there as well. Look at this analysis of salmon oil on nutritiondata. There are a lot of different fatty acids in fat!
If you want to go further the article about essential fatty acids in Wikipedia has the names to these shortcuts so you can see which is which in the ND analysis but they drive me crazy.

The amount seems to be a therapeutic dose to me, I follow these suggestions.