Adults who want a fizzy drink with their snack
Consider an energy drink for its flavour and caffeine separately from the water you drink after exercise.
Who is this choice for?
A sparkling energy drink is an optional caffeinated accompaniment to a snack; the NHS recommends water for replacing fluids lost during physical activity.
Shoppers keeping track of caffeine
Compare the amount in a whole can with caffeine you have already had from coffee, tea or pre-workout. Red Bull states 80mg per 250ml Sugarfree can; Monster Energy states 150mg for a 500ml Monster Ultra can, although the figure on the exact pack remains the one to check.
Shoppers considering sugar in the whole snack
Check whether you want sweetness from the drink as well as the food. A zero-sugar drink can still contain caffeine and sweeteners.
What should you check?
Decide how you will replace fluids after exercise, then compare cans by their complete caffeine serving and the sugar and ingredients on the exact pack.
| Priority | What to check | Your needs |
|---|---|---|
| Caffeine per can | Read the amount for the complete can, not just the concentration or a sugar-free claim. Red Bull states 80mg per 250ml Sugarfree can; Monster Energy states 150mg per 500ml Monster Ultra can, so check the figure on the particular pack you choose. | I want to know how this can fits alongside coffee, tea or pre-workout I may have already had. |
| Fluids after exercise | The NHS recommends water to replace fluids lost through physical activity. Keep that decision separate from whether you want a caffeinated drink with your snack. | If I have been sweating, replacing fluids matters more to me than choosing an energy-drink flavour. |
| Sugar and sweeteners | Read the sugar value per can and the ingredient list for the exact flavour and size. A zero-sugar description does not mean caffeine-free or sweetener-free. | My snack may already be sweet, so I want to decide whether the drink should add sugar too. |
| Warnings and suitability | Read the warning on the specific can and account for caffeine from other drinks and products. Relentless advises that its Guava drink is not recommended for children, people sensitive to caffeine, or pregnant or nursing women. | I need the pack’s warning to be clear before choosing a caffeinated drink for myself or someone else. |
Common buying mistakes
-
Assuming sugar-free means little caffeine
Sugar content and caffeine serving are different measurements. Red Bull states 80mg caffeine in a 250ml Sugarfree can, while Monster Energy states 150mg in a 500ml Monster Ultra can; the amount on a particular pack should be checked.
Read caffeine per whole can and consider other sources, including coffee, tea and pre-workout.
-
Using an energy drink as the main post-exercise drink
Wanting fizz or caffeine is a different consideration from replacing fluids lost during activity. The NHS recommends water for fluid replacement.
Have water for that purpose, then decide separately whether you want a caffeinated drink with your snack.
-
Looking at the drink without considering the snack
A sweetened drink and a zero-sugar drink make different contributions to the snack’s sugar content, while either may contain caffeine.
Check the nutrition and ingredient panel for the exact can, then consider it alongside what you plan to eat.
Brand references
These examples illustrate different drink styles and label checks; they do not describe every product made by each brand.
Red Bull
Red Bull Sugarfree is a 250ml-can reference for comparing a smaller caffeine serving with larger energy-drink cans.
- Red Bull states that one 250ml Sugarfree can contains 80mg caffeine.
- Sugarfree still contains caffeine; check the can’s ingredients if sweeteners matter to you.
Monster
Monster Ultra provides a 500ml-can reference for shoppers considering a larger zero-sugar drink.
- Monster Energy states 0g sugar and 150mg caffeine for its 500ml Monster Ultra can.
- Check caffeine on the exact flavour and pack before comparing a full can with other drinks.
Lucozade
Lucozade Alert is another caffeinated drink range to consider by individual flavour and pack.
- Lucozade describes Alert as containing naturally sourced caffeine and vitamin B3.
- Read the chosen pack’s caffeine and sugar values before comparing it with a specific Red Bull or Monster can.
Relentless
Relentless Guava is a fruit-flavoured option for shoppers comparing the ingredients and warnings on individual cans.
- The Guava flavour offers a different flavour choice from the zero-sugar examples above.
- Relentless says Guava is not recommended for children, people sensitive to caffeine, or pregnant or nursing women.
Joybuy product options
These canned options give you different sizes to consider for a fizzy drink alongside a post-gym snack. Compare the caffeine and sugar information on the exact can, and use water to replace fluids lost during exercise.
No image available
Red Bull Sugarfree 250ml, 24-pack
For a smaller can alongside a snack, Red Bull states 80mg caffeine per 250ml Sugarfree can. This pack contains 24 cans; the drink contains caffeine, so consider other caffeine you have had that day.
No image available
CELSIUS Kiwi Guava 12 × 355ml
For a kiwi-guava option with a snack, this pack contains 12 × 355ml cans. Check caffeine per can and the sugar and ingredient panel on the exact product before choosing it.
No image available
Monster Ultra White 12 × 500ml
For a larger can alongside a snack, this pack contains 12 × 500ml cans. Check caffeine per whole can on the exact pack before factoring it into your intake, and read its sugar information rather than relying on the range name.
Questions about post-gym drinks
Should an energy drink be my main drink after the gym?
No. The NHS recommends water to replace fluids lost through physical activity. If you also want a sparkling energy drink with your snack, treat its caffeine as a separate choice.
How do I compare a 250ml and a 500ml sugar-free can?
Compare caffeine per whole can rather than assuming sugar-free means less caffeine. Red Bull states 80mg for a 250ml Sugarfree can, while Monster Energy states 150mg for a 500ml Monster Ultra can; check the figure on the exact pack you intend to drink and consider caffeine from other sources.
Does sugar-free mean an energy drink suits everyone?
No. Sugar-free describes sugar content, not caffeine suitability. Check the caffeine amount, ingredients and warnings on the particular can, especially if caffeine sensitivity or a manufacturer warning is relevant.