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How Much Caffeine Is in Diet Sunkist? (Detailed Breakdown)

sunkist zero orange soda

Caffeine (serving: 12 fl oz)
19 mg
Caffeine (mg / fl oz)
Caffeine strength

Caffeine has become a major part of our daily lives. Whether it’s a cup of coffee, an energy drink, or a can of soda, caffeine seems to be everywhere. However, it is important to understand how much caffeine is in each drink, especially when it comes to popular sodas like Diet Sunkist. Each 12-ounce can of Diet Sunkist has a caffeine content of 19 mg.

This quick guide to caffeine in Diet Sunkist and other popular sodas will provide you with the information you need to make an informed decision about your caffeine intake. So, whether you’re trying to reduce your caffeine intake or just want to know more about the caffeine in your favorite drinks, this guide will provide the answers you need.

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Diet Sunkist Caffeine Content

Diet Sunkist is a carbonated soft drink produced by Dr Pepper Snapple Group, a multinational beverage company. The caffeine content of Diet Sunkist, like that of most sodas, depends on the serving size, which is normally 12 fluid ounces. A 12-ounce can of Diet Sunkist has 19 mg of caffeine, which is roughly 5x less than one 8-ounce cup of coffee that has about 95 mg of caffeine. Diet Sunkist is sweetened with aspartame, a low-calorie sweetener that is about 200 times sweeter than sugar. So, if you’re looking for a low-caffeine soda beverage option, you’ve found it.

Caffeine Content in Other Popular Sodas

Soda Caffeine content per 12 fl. oz.
Diet Sunkist 19 mg
Diet Pepsi 37 mg
Diet Dr Pepper 41 mg
Diet Coke 46 mg
Diet Mountain Dew 54 mg

Caffeine and Its Effects

Caffeine’s primary function is to stimulate the central nervous system, which can provide a variety of effects, both positive and negative. On one hand, caffeine can increase focus and improve athletic performance. On the other hand, it can lead to anxiety, insomnia, hypertension, and other negative health effects.

Caffeine’s effects depend on how much you consume and your state of health. If you consume less than 100 mg of caffeine, you are less likely to experience negative effects. However, caffeine at that dosage is not likely to provide any major benefits either.

It’s when consuming larger quantities of caffeine that health effects become more apparent. Caffeine has been found to reduce the rate of muscle recovery after exercise, impair insulin sensitivity, and reduce hydration. It is important, therefore, to consume caffeine in moderation.

orange soft drinks
Image Credit: successo images, Shutterstock

Caffeine Tolerance

There is a small percentage of the population that may experience caffeine sensitivity – remember, everyone is different. These caffeine-sensitive individuals experience caffeine’s negative effects at lower doses than non-sensitive individuals.

That stated, caffeine-sensitive people may experience headaches, increased blood pressure, and other negative effects from consuming caffeine at the same rate as non-sensitive individuals. It’s important to note, however, that caffeine tolerance is not permanent – it can change. If you consume caffeine regularly, your body will develop a tolerance to caffeine, and you will experience its effects at a lower rate. However, if you stop consuming caffeine and then resume, your tolerance will be lower.

Caffeine Withdrawal

Overall, caffeine has a significant effect on the human body. Therefore, when an individual suddenly stops consuming caffeine, they may experience caffeine withdrawal. Caffeine withdrawal symptoms can include headaches, irritability, difficulty concentrating, and decreased athletic performance. Caffeine withdrawal is also a common side effect of changing caffeine consumption.

For example, if you increase your caffeine consumption by twice as much, you’ll likely experience caffeine withdrawal when you lower your consumption again. The same is true if you reduce your caffeine consumption to a high level. So ultimately, moderation is best when consuming this stimulant.

Note that the FDA recommends no more than 400 mg of caffeine a day – that’s about six Diet Sunkists. And remember, when it comes to soda, you should also consider the sugar content.

pouring orange soda into glass
Image Credit: Nit, Shutterstock

Alternatives to Diet Sunkist and Other Popular Sodas

While caffeine is an important part of most people’s daily diets, there may be times when you want to cut down or simply remove it from your life, such as things like pregnancy, heart conditions, or other reasons. If you’re looking to reduce your caffeine intake, there are lots of alternatives to the most popular sodas that are lower in caffeine.

Instead of Diet Sunkist, try Perrier sparkling water. Perrier is a sparkling water that contains no caffeine and is rich in minerals. Or, if you prefer plain water, you can try Pellegrino sparkling water, which is also caffeine-free. For a caffeine-free version of Diet Pepsi, try Diet 7-Up, which contains no caffeine and is made with the same sweeteners as Diet Pepsi. And instead of regular coffee, consider decaf or coffee alternatives such as black tea (which also comes in decaf versions) or matcha tea.

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Wrapping Things Up

Caffeine is a common stimulant that can be found in many foods and drinks. Diet Sunkist has a caffeine content of 19 mg per 12 fl. oz. When consumed in moderate amounts, caffeine can improve focus and athletic performance. However, it’s important to realize that caffeine isn’t considered a drug per se. However, it can also have negative effects on the body, including increased blood pressure and reduced muscle recovery after exercise. To reduce your caffeine intake, you can try consuming caffeine-free alternatives to the most popular sodas.


Kate MacDonnell

Kate is a lifelong coffee enthusiast and homebrewer who enjoys writing for coffee websites and sampling every kind of coffee known to man. She’s tried unusual coffees from all over the world and owns an unhealthy amount of coffee gear.

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