How to Maximize the Vitamin C in Your Orange Juice

Reviewed by Dietitian Casey Wing, RD, CD

Key Points

• Store orange juice in the fridge, tightly sealed, to preserve its vitamin C content.

• Drink orange juice soon after opening to maximize its vitamin C benefits.

• Use orange juice creatively, like in smoothies or dressings, to enjoy its nutrients.

Vitamin C, or L-ascorbic acid, is an essential water-soluble vitamin that supports immune function, wound healing and antioxidant protection, helping shield cells from damage caused by free radicals. You can find it in a variety of fruits, including oranges, strawberries and kiwis, as well as vegetables like bell peppers, broccoli and cabbage. Plus, 100% fruit juices, like orange juice, are also a convenient source. In fact, a ¾-cup serving of 100% orange juice provides more than 100% of the recommended Daily Value for vitamin C, making this popular breakfast staple an excellent source of this essential nutrient.

While freshly squeezed orange juice is one delicious way to get your vitamin C, how you store your juice can also affect how much of this nutrient it retains over time. Roxana Ehsani, M.S., RD, CSSD, shares, “There isn’t one special way to enjoy 100% orange juice to improve vitamin C absorption, but proper storage can help preserve its vitamin C content.” Read on for the science-backed tips on how to store orange juice to help preserve its vitamin C, how soon to enjoy it and other easy ways to incorporate this citrus favorite into your daily routine.

Why Proper Storage Preserves Vitamin C

First and foremost, there’s more to optimizing the vitamin C content in orange juice than just picking the freshest fruit. Melissa Jaeger, RD, LD, shares, “Vitamin C content in orange juice isn’t just about the fruit; it’s shaped by how the juice is processed, packaged and stored along the way.” With this in mind, consider these factors that can help preserve vitamin C in each cup.

Vitamin C Breaks Down over Time

How you store orange juice, and how long it sits in your fridge after opening, can make a difference in how much vitamin C is available for consumption when it comes time to enjoy your cup. Since vitamin C is water-soluble and sensitive to environmental conditions, its content can decrease during prolonged storage. As Jenna Braddock, M.S.H., RD, CSSD, CPT, explains, “The best way to get the most vitamin C from 100% orange juice is to drink it within a reasonable amount of time.”

Jaeger agrees, noting that “once you’ve opened a container, the clock is ticking!” To help preserve vitamin C, she recommends purchasing ready-to-drink orange juice several weeks before its expiration date, storing it in a resealable, airtight container in the refrigerator after opening, and finishing it within about a week.

Heat, Light and Air Can Affect Vitamin C Levels

“Vitamin C is sensitive to heat, light and oxygen exposure, all of which speed up its breakdown, but these are also often part of the processing orange juice undergoes to support food safety and extend shelf life,” Jaeger says.

However, that doesn’t mean you should avoid pasteurized orange juice. Pasteurization helps protect against harmful microbes that can cause foodborne illness, making it an important food-safety step.

Instead, Jaeger encourages consumers to compare labels and evaluate the vitamin C content of different products. Research suggests that heat processing can reduce naturally occurring vitamin C levels by 50% to 70%, although the amount varies depending on processing conditions. Meanwhile, newer processing technologies are being explored for their potential to better preserve vitamin C. As these innovations continue to evolve, comparing Nutrition Facts labels can help you identify which orange juice offers the most vitamin C per serving.

Refrigeration and the Right Container Help Preserve Vitamin C

Last but not least, how you store your orange juice can make a difference in how much vitamin C it retains. Because vitamin C is sensitive to oxidation, prolonged storage and temperature fluctuations can accelerate nutrient losses. Keeping orange juice refrigerated, tightly sealed and in its original container is a practical way to help preserve its vitamin C content. As Ehsani explains, “When orange juice is stored properly in the fridge, tightly sealed and in an opaque or glass container, it allows more vitamin C to be preserved in each sip.”

Research supports the importance of storage conditions, too. A study examining fruit and vegetable juices (rather than orange juice specifically) found that refrigeration at 39°F and glass packaging helped preserve vitamin C during storage. While these findings may not apply equally to every orange juice product or packaging type, they reinforce the value of keeping juice cold and properly sealed to help maintain its nutrient content.

Other Ways to Enjoy Orange Juice

You can enjoy orange juice straight from the glass, but that’s not the only way you can reap the nutritional benefits of this delicious and nutritious juice. Experts recommend thinking outside the box and utilizing that open container in the following ways:

• Blend it. A simple but effective way to use up your orange juice is as a complement in your smoothies. “Use 100% orange juice as a base in smoothies for a source of vitamin C and natural sweetness without added sugar, like in my favorite Orange-Mango Chia Seed Smoothie recipe,” Ehsani recommends.

• Freeze it. Jaeger recommends freezing it in ice cube trays for a fun addition to your beverages, or mixing with other frozen fruit and making your own popsicles.

• Use it in make-ahead breakfast favorites. Orange juice amps up the flavor in your classic staples, like overnight oats. Ehsani suggests stirring it into overnight oats with cranberries for a flavorful combination that also packs vitamin C.

• Hydrate for exercise. For active people who want a pre- or post-workout refreshing carbohydrate source, Braddock recommends sipping on a cup of orange juice. Ehsani agrees, noting that with a pinch of salt it also serves as a nice homemade electrolyte beverage, with naturally occurring potassium, another key electrolyte lost in sweat.

• Make a homemade dressing. Enlist 100% orange juice as the base for your next vinaigrette, suggests Jaeger: “Whisk with a bit of olive oil and your favorite spices to top your salad.”

Our Expert Take

Vitamin C is an important nutrient you need in your diet to support your body functioning at its prime. Enjoying 100% orange juice can be a convenient way to help meet your vitamin C needs as part of a balanced diet. You don’t need to squeeze fresh oranges every day to reap the benefits, suggests Braddock. Instead, choose a 100% juice you enjoy, refrigerate it promptly after opening and follow the package’s storage instructions to help preserve its vitamin C content. If you tend to have juice left over, opting for a smaller container may help you enjoy every last drop while it’s fresh.

As Ehsani reminds us, “Your body absorbs vitamin C from juice efficiently, so the real goal is making sure the vitamin C is still there when you drink it by storing it correctly.”

Read the original article on EatingWell