FitSugar

Mercury and Fish: What's the Deal?

FitSugar — Tue, 27 Feb 2007 13:00:00 PST

I've heard people say that pregnant women shouldn't eat a lot of fish because of the mercury content. What's so bad about mercury and why is it in fish?

Although fish contain high-quality protein and other essential nutrients, are low in saturated fat, and contain omega-3 fatty acids, nearly all fish and shellfish contain traces of mercury.

Mercury occurs naturally in the environment, and can also be released into the air from pollution. The mercury falls from the air and accumulates in oceans, lakes, and rivers. Fish absorb the mercury since they live and feed in these waters, and the mercury builds up their bodies. That's why larger fish are the ones to watch out for when it comes to mercury, because they've had more time to accumulate it.

Some fish and shellfish contain higher levels of mercury that may harm an unborn baby or young child's developing nervous system. That's why nursing mothers, women who are pregnant, and those who are trying to become pregnant are advised to watch their mercury intake.

For everyone, elevated levels of mercury can lead to nervous system problems with brain or nerve damage. Mercury levels can be measured by blood tests, or tests using hair.

If you regularly eat types of fish that are high in mercury, it can accumulate in your blood stream over time too. The body naturally removes it, but it may take over a year for levels to drop back to normal. That's why it's important for women who are trying to get pregnant to think about their mercury intake beforehand.

Want to hear about some guidelines from the EPA? Then

Do not eat Shark, Swordfish, King Mackerel, or Tilefish because they contain high levels of mercury.
You can eat up to 2 meals (total of 12 oz) of fish a week.
5 of the most commonly eaten fish that are low in mercury are shrimp, canned light tuna, salmon, pollock, and catfish.
Albacore ("white") tuna has more mercury than canned light tuna. So, when choosing your 2 meals of fish and shellfish, you may eat up to 6 oz (1 average meal) of albacore tuna per week.
Check local advisories about the safety of fish caught in lakes, oceans, and rivers near you. If no advice is available, only eat 1 meal (6 oz) a week of fish you catch, and no other fish that week.

Check out this poster. It's a great visual for which fish are low in mercury, and which ones to watch out for.

Crafting the Tuna, Fennel, and Lemon 'Wich at Home

OnSugar Blog — Mon, 17 Oct 2011 09:15:48 PDT

A sandwich from 'Wichcraft is relatively easy to make at home, as Between the Bread shows us in this tuna and fennel sandwich recipe post.

The mayo-free tuna sandwich at 'Wichcraft is one of my favorites, and compared to many of the other recipes in the cookbook 'Wichcraft: Craft a Sandwich Into a Meal - and a Meal Into a Sandwich, this one is relatively simple. The resulting meal is so magnificently complex and and innovative, I couldn't believe I'd made it all by myself.

As I learned making 'Wichcraft's goat cheese with avocado and celery, this cookbook gives you the option (and the recipes) of making many of the ingredients from scratch. In this case, I skipped the homemade lemon mayo but did make the lemon confit, which was extraordinary. I have since used the thinly sliced, cured lemons on numerous sandwiches and salads, and it's a great accent to have in the fridge.

Get the recipe now.

Top 10 Fish With Highest Sources of Omega-3s

Heather Dale — Fri, 16 Sep 2011 11:47:13 PDT

Vegans and vegetarians don't eat it. And pescatarians - who abstain from eating red meat and animal flesh - make the exception to eat it. All in all, it's hard to deny the health benefits associated with fish. Many types of fish are low in fat, high in essential heart-healthy omega-3 fatty acids, an excellent source of protein, and packed with vitamins and minerals. It's safe to eat fish twice a week (up to 12 ounces), but it's best to choose different types of fish so you get a variety of nutrients.

As great as fish is, it's also good to know which types of fish to consume, as nearly all fish and shellfish contain traces of mercury. Expecting moms should stick to fish with mercury levels of one part per million (ppm) or lower. The rest of us can safely consume fish with mercury levels that average 5.5 ppm.

Here's a full rundown of the top 10 fish with the highest omega-3 fatty acids, the highest mercury content, and those that are on the Seafood Watch for best options for sustainability and unsustainable options that are best avoided.

Keep reading to view the top 10 fish chart!

What's the Diff: Omega-3s vs. Omega-6s

FitSugar — Fri, 20 Nov 2009 07:00:10 PST

Omegas are all the buzz right now, and it seems like everywhere you turn, new foods are being enhanced with this essential fatty acid, or labeled as an excellent source. What people don't know is that there are different types of omegas, and eating too much of one kind can actually be harmful to your body.

Omega-3s are found in flax seeds, walnuts, cod liver oil, and fatty fish like mackerel, lake trout, albacore tuna, and salmon. Fish are the best sources because they are high in two particular fatty acids that are crucial to good health, DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid).

Then there are omega-6s. These fats are found in eggs, nuts, chicken, and vegetable oils such as corn, soy, safflower, and sunflower oil. Omega-6s are high in LA (linoleic acid), which is converted by the body into GLA (gamma-linolenic acid), and then further broken down to AA (arachidonic acid).

Do you know which type of omega fatty acid we should be eating more of? To find out, keep reading