Pepsi Zero Sugar vs Prime Energy: which has more caffeine?

Prime Energy has more caffeine than Pepsi Zero Sugar: 200mg vs 69mg in the same 12 oz can. That is a 131mg gap, and since the cans match, the per-serving number is the whole story.

These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.

Pepsi Zero Sugar vs Prime Energy: the numbers

Sources: Pepsi Zero Sugar's figure is verified in our Pepsi Zero Sugar caffeine guide against PepsiCo product facts (source); Prime Energy's figure is verified in our Prime Energy guide against Caffeine Informer (source).

Which one should you pick?

Pick Pepsi Zero Sugar when you want the lighter dose or a slower ramp, and Prime Energy when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.

For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.

Related reading

• Pepsi Zero Sugar: the full caffeine guide
• Prime Energy: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does Pepsi Zero Sugar or Prime Energy have more caffeine? Prime Energy: 200mg per 12 oz can versus 69mg per 12 oz can for Pepsi Zero Sugar.

Which is stronger per ounce? Prime Energy, at about 16.7mg per fluid ounce versus 5.8mg for Pepsi Zero Sugar.