Xyience Xenergy has more caffeine than V8 +Energy on both counts: 176mg per 16 oz can against 80mg per 8 oz can, and about 11mg per fluid ounce against 10. The serving sizes differ, so the table below shows both ways of counting.
V8 +Energy vs Xyience Xenergy: the numbers
| V8 +Energy | Xyience Xenergy | |
|---|---|---|
| Caffeine per serving | 80mg per 8 oz can | 176mg per 16 oz can |
| Caffeine per fl oz | 10.0mg | 11.0mg |
| Servings to reach 400mg (FDA context) | 5.0 | 2.3 |
Sources: V8 +Energy's figure is verified in our V8 +Energy caffeine guide against Campbell's / Caffeine Informer (source); Xyience Xenergy's figure is verified in our Xyience Xenergy guide against Caffeine Informer (source).
Which one should you pick?
Pick V8 +Energy when you want the lighter dose or a slower ramp, and Xyience Xenergy 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
- V8 +Energy: the full caffeine guide
- Xyience Xenergy: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does V8 +Energy or Xyience Xenergy have more caffeine? Xyience Xenergy: 176mg per 16 oz can versus 80mg per 8 oz can for V8 +Energy.
Which is stronger per ounce? Xyience Xenergy, at about 11.0mg per fluid ounce versus 10.0mg for V8 +Energy.
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