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 so many preservatives out there. While preservatives added to foods should be “approved,” this doesn’t mean they’re guaranteed to be safe for everyone always. And it doesn’t mean that the food is healthy.
Foods with preservatives are more-processed, less-nutritious foods to begin with – not exactly health foods. So, even if you don’t mind preservatives, you probably should cut down on these kinds of foods, anyway.
Processed foods are the foods that require preservatives. Think about it. How long is the shelf life of some of the processed foods that you can find in your pantry right now? I know I didn’t realize how many chemicals I was eating until I started learning more about how foods are made and really watching labels of what I buy.
So, let’s learn more about a few common food preservatives and how they could be affecting our weight and fat loss or gain.
If you are concerned about the chemicals and preservatives in the foods you have at home and want some help finding healthier alternatives, click here to find a good time for you on my calendar and let’s talk.
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 seem to 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. Not to mention, a higher intake of sodium will also cause you to retain more fluids in the body and that will affect what you see on the scale.
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.
Since nitrosamines (from nitrites) are the bad guys and are formed by cooking nitrites at high heat, what are nitrates?
Nitrates are naturally found in many healthy foods like vegetables. They’re especially high in beets. Sometimes our enzymes or gut bacteria change these healthy nitrates into nitrites. However, they rarely form nitrosamines because they’re two steps away from becoming these “bad guys.”
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? Guess how these compounds maintain freshness? Because they’re 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. Again, they’re added to processed pre-packaged foods, so it’s wise to avoid them nonetheless.
There are a lot of preservatives in our food supply. Preservative 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.
The fresher your food, the less chance of consuming chemicals and preservatives. And one more thing to keep in mind about the processed foods that contain all of these preservatives, the body doesn’t have to do a lot of additional processing to them, so the body tends to retain every single calorie and fat gram in them.
If you are trying to lose weight or fat, then stick with fresh whole foods as much as possible.
Does this information make you want to read all your food ingredient labels now? Let me know in the comments below.