Swaps

Caffeinated alternatives to soda (unsweetened)

If your soda was mostly about caffeine, you can keep the caffeine and drop the soda. Here are the unsweetened options and how their caffeine compares.

By Patrick McCarthy, published Nov 2, 2026, reviewed Nov 2, 2026

Not medical advice. QuitSoda is habit support for adults. If caffeine, sugar, pregnancy, medicines, or a health condition affect your plan, ask your clinician.

Soda vs tea vs coffee, per 12 oz

Brand rows are for a 12 oz can. Tea and coffee rows are the FDA's typical amounts, and the FDA notes that the caffeine in specific products and cup sizes can vary. Coffee shop cups come in many sizes, so check yours.

Unsweetened swaps that have caffeine

• Unsweetened black tea, hot or iced. At about 71 mg per 12 oz, it has more than a can of Coke (34 mg) or Pepsi (38 mg) and sits inside the FDA's range for caffeinated soft drinks.
• Unsweetened green tea, hot or iced. About 37 mg per 12 oz, close to a can of Coke or Pepsi.
• Plain coffee, hot or iced. Regular brewed coffee has much more caffeine than a can of soda, so a smaller cup may match your old can better.
• Half-caf or decaf, if you want the cup without as much caffeine. The FDA says decaf coffee typically has 2 to 15 mg in an 8 oz cup, so it is not caffeine free.

To make tea feel more like a soda, drink it very cold, over ice, from the same kind of glass or bottle you used to use. The unsweetened tea guide covers what to look for on the box.

Match your old soda, then decide

Add up your usual daily caffeine from soda using the brand numbers. Two Diet Cokes at 46 mg each is 92 mg. A 12 oz unsweetened black tea at about 71 mg plus a small green tea would land close to that. Matching your old total at first lets you drop the soda without also changing your caffeine.

If you want less caffeine later, the FDA says it is best to cut back gradually, and MedlinePlus says to reduce your intake slowly to prevent withdrawal symptoms. How to cut back on soda has a taper plan.

Caffeinated sparkling drinks and energy drinks

For caffeinated sparkling waters and energy drinks, the QuitSoda rule is the label: if it lists natural flavor, fruit juice, or any sweetener, it counts as soda, even with 0 calories. Unsweetened tea or coffee is the simpler caffeinated swap.

The FDA puts energy drinks at 41 to 246 mg of caffeine per 12 oz, and says packaged foods must list caffeine in the ingredients when it is added. At a coffee shop, the CDC suggests skipping the flavored syrups and whipped cream.

Watch the time of day

MedlinePlus says caffeine reaches its peak level in your blood within one hour and you may feel its effects for four to six hours. The CDC lists avoiding caffeine in the afternoon or evening among habits that can improve sleep. If your soda was a late-day habit, try moving your caffeinated drink earlier and using water or plain sparkling water for the late slot. More ideas are in the afternoon slump without soda.

For most adults, the FDA cites 400 mg a day as an amount not generally associated with negative effects, but sensitivity varies. If you are pregnant, take medicines, or have a health condition, ask your clinician about caffeine.