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What's the difference between supplemental fish oil and cod liver oil? Both furnish heart-healthy omega-3 polyunsaturated essential fatty acids.
But cod liver oil also packs a vitamin A wallop--the sunshine vitamin so important during darker winter months.
Now that summer has arrived, those who live in the northern United States or in Canada should switch from cod liver oil to fish oil. Otherwise, there's a risk of toxicity from excess accumulation of vitamin A from the sun, dietary sources, vitamin supplements and cod liver oil. Those living in southern states should avoid cod liver oil year-round.
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