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What Are Ways to Prevent Your Fish Oil from Turning Rancid?

Fish oil has become popular because of the benefits associated with it; however, it is not long-lasting. For your fish oil to be beneficial, it is important that it does not turn rancid. The best fish oil will not only be pure and fresh, but it will also be shelf-stable for long periods. There are ways to prevent your fish oil from going rancid. Keep reading below.

Choose High-Quality Brands

You want to make sure that your fish oil is high-quality. You do not want to get an inferior product that will not benefit you. Many fish oils will turn rancid quickly, so you want to make sure that you pay attention to the expiration date on the bottle.

If you order your fish oil online, you can look for companies with strict expiration rules for their products. Find out if the fish oil is tested for freshness and if any wilting is allowed. If your fish oil does not have an expiration date, you can call the manufacturer and ask about it. In addition to the expiration date, check the manufacturing date of the product. If the product was manufactured more than three years ago, you should not buy it.

Store Your Fish Oil in a Cool, Dark Place

Fish oil often comes in dark bottles, which helps prevent it from turning rancid. Fish oil does not need to be stored in the refrigerator, but it does need to be kept in a cool, dark place. If you do not have a dark office, you can use a dark storage bag. Make sure that there is plenty of ventilation in the bag so that the fish oil does not go rancid. If you keep your fish oil in a place that is too hot, the fish oil is more likely to go rancid. 

Buy in Smaller Quantities

One of the best ways to ensure that your fish oil will not go rancid is to buy it in smaller quantities. You can buy a smaller amount of fish oil, but make sure that it does not have an expiration date that passes in less than three months. Make sure that the bottle of fish oil has a manufacturing date on the label. 

Buy an Organic Product

If you can find a fish oil that is certified organic, it will not go rancid as easily. Fish oil that is not organic can be full of toxins, which will make it easier for the fish oil to go rancid. Look for a company that does not use pesticides on their fish too.

Purchase a Fish Oil with a Long Shelf Life

It is vital that you buy fish oil that has an extended shelf life. The extended shelf life will mean that you can use your fish oil for longer periods. The fish oil will remain fresh and it will not go rancid. Fish oil with a long shelf life can last up to two years.


There are many fish oil benefits if you are looking for a supplement that will improve your health. It will help with your heart health, immune system, and more. If you want to take fish oil regularly, you want to make sure it is fresh and does not go rancid. You can use the tips mentioned above to ensure that you can use your fish oil for a long time.

Are you interested in buying the best fish oil you can find? Check out Rhythmic Health. We offer products that help people solve their health challenges and lead fulfilling lives. Shop now!

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