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Re: Going back to old-school - lithium. morganator

Posted by Ron Hill on October 1, 2009, at 5:31:11

In reply to Re: Going back to old-school - lithium., posted by morganator on September 28, 2009, at 22:57:39

> Unless companies like Kirkland are lying, there are undetectable levels of mercury, pcb's, and other toxins in many fish oil products that are VERY affordable. Kirkland enteric coated capsules go for about 17 dollars for 180 capsules and the normal capsules go for about 10 dollars for 400-Dirt Cheap!!!! The only drawback to buying Kirkland fish oil may be that you have to settle for the typical 4 to 3 DHA to EPA ratio.


The product you reference in the above link has a sum of 300 mg of EPA, DHA, and other Omega 3 added together in each soft gel. As you know, not all omega 3 oil is EPA or DHA. Therefore, it is impossible to determine the quantity of EPA and DHA in this product based on the information provided in the Product Details.


In the Product Details section for the item in your link above, it is stated that the mass of EPA and DHA are reported "as the ethyl esters" of these compounds. The molecular weight of EPA ethyl ester is greater than the molecular weight of the pure EPA compound. The same is true for the DHA ethyl ester verses DHA.

One would need to calculate the ratio of the molecular weights in order to determine the actual amount of EPA and, similarly, DHA. I could dig out my dusty organic chemistry book and do the math, but I don't want to take the time.

In order to compare the cost of Carlson's liquid verses Kirkland softgels, I used the following two products:

In fairness, the Kirkland Natural Fish Oil Omega 3 CONCENTRATE can be found on the internet for a much less cost than on the above website. I included the above link because it provides the amounts of EPA and DHA, whereas, the website with the lowest cost does not contain these data.

Here is the website with the lowest price that I could find for Kirkland Natural Fish Oil Omega 3 CONCENTRATE:

Here are the calculations to compare Carlson's liquid in a bottle compared to Kirkland Natural Fish Oil Omega 3 CONCENTRATE. Recall that in the study conducted by Stoll MD et. al., (EPA + DHA = 9.6 g/day) was used:

For the Kirkland product:

Price: $17.49 for two bottles of 400 softgels each (i.e.; 800 total softgels).
Serving Size: 1 softgel per day = 300 mg of (EPA + DHA). {Side note: 300 mg = 0.3 g}.

($17.49/2 bottles)(1 serving/0.3 g)(2 bottles/800 servings)(9.6 g/day)(30 day/month) = $20.99/month

For the Carlson's liquid bottled Fish Oil:

Price: $26.55 per 500 ml bottle
Serving Size: 5 ml = 1.3 g of (EPA + DHA).

($26.55/bottle)(1 serving/1.3 g)(1 bottle/100 servings)(9.6 g/day)(30 day/month) = $58.52/month

> I know companies like Carlson's and Nordic naturals are producing high quality fish oil, but how much higher quality is it and is it worth paying the price for?

Yep, you're right. The math doesn't lie. Carlson's cost about three times as much as the high quality Kirkland product. Thanks for pointing this out to me.

-- Ron

dx: Bipolar II with ultra rapid cycling and mild OCPD
600 mg/day Trileptal
200 mg/day Lamictal
500 mg/day Keppra
90 mg/day Nardil




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