Tuna is one of the most popular meats in America, but it’s also one of the most controversial. Many people think that canned is tuna healthy option because it’s high in omega-3 fatty acids, but this could not be further from the truth. In fact, some types of tuna are actually very high in mercury—which can be toxic to your nervous system—and other unhealthy contaminants (like PCBs). So what should you know about this common fish?
Tuna can be high in mercury, which is toxic to the nervous system.
is tuna good for you is a great source of protein, but it can be high in mercury. Mercury is a neurotoxin that can harm the nervous system and cause brain damage. It’s especially dangerous to people with compromised immune systems, such as those who are pregnant or have young children.
Studies show that infants exposed to high levels of methylmercury during pregnancy may experience permanent deficits in cognitive function later in life; this effect has been linked to developmental delays, including reduced IQs and decreased performance on tasks requiring spatial abilities (such as drawing).
The risk may also affect adults: A study published last year found that women who consumed tuna containing at least 0 parts per million (ppm) of methylmercury had higher levels than women who didn’t eat fish at all! In addition to affecting brain development, poor prenatal nutrition could lead directly into childhood obesity later down the road – which increases risk factors like Type 2 diabetes mellitus.
Canned tuna might contain other unhealthy contaminants.
Canned tuna is often packaged in oil, which can be contaminated with PCBs and dioxins. Dioxins are carcinogenic compounds that have been linked to cancer and thyroid disease. In addition, canned tuna may be contaminated with high levels of sodium (salt) or dyes; both are linked to increased blood pressure, heart disease and even stroke in some studies.*
Finally, the fish itself may not be as healthy as you think: The FDA recently announced plans to ban one type of “fresh” white albacore (or yellowfin) that it believes has been mislabeled as albacore when they were actually caught off California’s coast last year prior to being shipped elsewhere around the country – including right here at home!
We’ve learned that tuna is a very healthy source of omega-3s, but there are some things you should know. It can be high in mercury and other contaminants, so it’s best to limit your intake to two 6-ounce servings per week. If we may be of any similar assistance, please don’t hesitate to contact us (firstname.lastname@example.org).