Hanni Berger CEO JOYVIAL
Do food preservatives cause obesity?
A food preservative is a substance added to foods to make them last longer; to "preserve" them. Preservatives are added to foods that go bad quickly and have found themselves in all kinds of products in our grocery stores.
Preservatives work to preserve food in a few different ways. Some prevent the growth of bacteria and mold. Others prevent delicate fats from going rancid.
There are tons of preservatives and, while most are approved by the FDA, they can really mess with your body. Foods with preservatives are more-processed, less-nutritious foods to begin with, meaning that you want to consume them sparingly.
So, let’s learn more about a few common food preservatives.
That’s right - salt.
FUN FACT: The term “salary” is from the Latin word for salt. It’s thought that it came from the ancient Romans who would pay employees, allowing them to buy salt. Either that, or it was for their work conquering and/or guarding salt mines/roads. Either way, salt was sought because of its ability to preserve food before the advent of refrigeration.
In today’s day and age, with fridges and freezers in every home and grocery store, and refrigerated trucks, salt is not needed for food preservation as much. But our taste buds still crave it on an epic scale. The average American eats over 3,400 mg of sodium per day, well over the recommended 2,300 mg/day. Much of that is because it’s found in processed foods.
According to Harvard Health: "... reducing dietary salt (table salt that is only sodium, chloride and iodine) will lower blood pressure, reduce the risk of heart attack and stroke, and save lives."
So, salt is one of those all-too-common food preservatives that most of us will do better with less of.
Nitrites (nitrates and nitrosamines)
Nitrites are preservatives added to processed meats. They're not bad in and of themselves, but they do turn into harmful chemicals called nitrosamines. Nitrosamines are carcinogens found in cigarette smoke. Nitrites form nitrosamines when they're cooked at high heat, and sometimes even when exposed to the high acid environment of the stomach.
Nitrites are added to meats to keep the pink-red color and prevent “browning.” Mostly in bacon, ham, sausages and lunch meats. Since nitrites can change into nitrosamines, nitrites are one-step away from being the “bad guys.”
Another interesting thing is that processed meats have been linked with colon cancer. Because of the nitrites? Perhaps, but either way, nitrosamines are a confirmed health-buster.
BHA & BHT
Have you seen on packages “BHA/BHT has been added to the package to help maintain freshness?” Perhaps on cereal packages or in gum? They are preservatives.
BHA (butylated hydroxyanisole) and BHT (butylated hydroxytoluene) are antioxidants added to many processed foods. The main way BHA and BHT work is by preventing fats from going rancid. Are they safe? Well, they're approved for use as a preservative at small doses. However, some studies show they can cause cancer in animals at high doses.
Also a study linking BHT with obesity found an undeniable connection. "We discovered that these chemicals damaged hormones that communicate between the gut and the brain," said Dhruv Sareen, PhD, assistant professor of Biomedical Sciences.
There are a lot of preservatives in our food supply. These compounds work by preventing the growth of bacteria and mold, or by preventing fats from going rancid. And they're mostly found in processed foods. If you want to avoid them. Eat fresh foods.
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