When it comes to maintaining the freshness and potency of your supplements, sometimes storing them in the refrigerator is crucial. Just like a piece of delicate cheesecake must be chilled to have the perfect taste and texture, certain supplements also benefit from lower temperatures. By storing these five supplements in the refrigerator, you ensure that they remain in the best possible condition. Keep reading to learn more.

Why Some Supplements Need to Be Stored in the Refrigerator

The first thing to keep in mind is that you should always follow the storage instructions listed on the supplement label. This is because proper storage is key to maintaining their effectiveness and potency. Environmental factors such as heat, humidity, and oxygen can affect the potency and formulation of certain supplements.

While most supplements are stable at room temperature, some need to be stored in the refrigerator because they contain live microorganisms or delicate ingredients that are sensitive to the environment. However, not all supplements are suitable for refrigeration. In some cases, refrigeration may expose the product to excess moisture, which could degrade it. That’s why reading the label is important.

5 Supplements You Should Store in the Refrigerator

Fish Oil

Fish oil contains omega-3 fatty acids that are prone to oxidation when exposed to heat, light, and air. This oxidation process can degrade the quality of the oil, leading to an unpleasant rancid smell and taste, as well as a loss of nutritional value. “Generally, lower temperatures protect delicate oils from spoilage, extend the shelf life of the supplement, and slow down potential microbial growth.”

Probiotics

Probiotics contain live microorganisms that are beneficial for gut health but don’t tolerate temperature changes well. “Lactobacillus and Bifidobacterium” are highly sensitive to heat and should be stored in the refrigerator to survive. Exposure to heat can cause these delicate bacteria to die, making the probiotic supplement less effective or even useless.

By storing probiotics in the refrigerator, you ensure that the beneficial bacteria remain effective, supporting gut health, immune function, and helping maintain a balanced gut microbiome.

However, not all probiotic strains need refrigeration—some are designed to be more stable at room temperature. Always check the label for specific storage recommendations.

Liquid Iron

If your doctor recommends taking an iron supplement for low iron levels, they may suggest you take it in liquid form. Store these bottles in the refrigerator. Adams explains that liquid vitamins, such as liquid iron, should be kept in the fridge for freshness and to maintain their potency. Cooling helps slow down the oxidation processes that can degrade iron and reduce its effectiveness. Additionally, storing liquid iron in the cold helps preserve its taste and prevent the formation of unpleasant odors.

Flaxseed Oil Supplements

Flaxseed oil can quickly become rancid. This oil is rich in omega-3 fatty acids, which easily oxidize when exposed to heat, light, and air. Cooling slows this process, so your supplement stays fresh longer. Additionally, when kept cold, flaxseed oil retains its flavor better, helping you avoid rancid taste and odor.

Vitamin C

Most people have healthy levels of vitamin C, but if you decide to take a supplement, there’s one big thing to know: vitamin C is known to be extremely sensitive and degrades easily with heat, light, and air. Storing these supplements in a cool, dark place can help maintain their potency. While refrigeration is not absolutely necessary, it can be helpful in warmer climates or for long-term storage.

Probiotics, liquid vitamins, fish oil, and flaxseed oil are particularly sensitive to heat and light and should be stored in the refrigerator to preserve their potency. Always check the label and follow the manufacturer’s recommendations for storage. By properly storing these supplements, you can maximize their benefits and support your overall health.