Who is this choice for?

Campers looking for a no-sugar can

If you want a caffeinated drink without sugar for a festival day, compare the sugar declaration and the caffeine amount per can. A sugar-free name does not tell you how much caffeine you will drink.

People keeping track of caffeine

Coffee, tea, cola and supplements can add to an energy drink’s caffeine. The container size matters: Red Bull states 80 mg in a 250 ml Sugarfree can, while Monster Energy lists 150 mg in a 500 ml Ultra can.

Campers considering a shared bottle

A larger bottle may offer several servings, but check what happens after opening. Sainsbury’s says the 900 ml Lucozade Energy Zero Sugar Orange bottle contains three servings and should be refrigerated once opened.

What should you check before buying?

For a campsite, compare the label, caffeine per container and opened-storage instructions before deciding how many drinks to pack.

Priority What to check Your needs
Sugar and sweeteners Read the sugar value on the nutrition panel and the ingredients list for sweeteners. Check the actual can rather than relying on its flavour or front-of-pack name. I’m looking for a drink without added sugar, but I also want to know which sweeteners it contains.
Caffeine per can Compare the amount for the whole container, not just per 100 ml. Red Bull states 80 mg in Sugarfree 250 ml; Monster Energy lists 150 mg in Ultra 500 ml. These figures describe those specific drinks, not every variant from either brand. A smaller can may fit better if I’m also having coffee or cola. If I choose a larger can, I need to count its full caffeine amount.
Caffeine warnings Read the warning on the drink and account for other caffeine sources. The NHS advises a limit of 200 mg a day from all sources during pregnancy. If caffeine is unsuitable for me, changing to a zero-sugar energy drink does not remove it.
Servings and storage Check how many servings the pack contains and whether leftovers need chilling. Sainsbury’s says Lucozade Energy Zero Sugar Orange 900 ml contains three servings and must be refrigerated and consumed within four days after opening. Without reliable refrigeration, I’d rather open one can at a time than keep part of a bottle for later.

What is easy to overlook?

  • Assuming sugar-free means caffeine-free

    Red Bull Sugarfree and Monster Ultra contain caffeine despite their sugar claims. Their stated amounts are 80 mg per 250 ml can and 150 mg per 500 ml can respectively.

    Read the caffeine declaration for the full can and include other drinks or supplements when considering your day’s intake.

  • Treating a large bottle as one serving

    Sainsbury’s lists three servings in its 900 ml Lucozade Energy Zero Sugar Orange bottle. It also instructs shoppers to refrigerate the bottle and consume it within four days once opened.

    Check the serving and storage instructions against the facilities you will have at the campsite.

  • Choosing from the product name alone

    A sugar-free name does not identify the sweeteners used or tell you the caffeine amount in every variant.

    Check the physical container’s ingredients, nutrition panel and caffeine warning, particularly if a retailer description leaves you unsure.

  • Overlooking who the caffeine warning applies to

    A zero-sugar claim does not change a drink’s caffeine content. The NHS advises no more than 200 mg of caffeine a day during pregnancy, counting all sources.

    Read the warning before buying; if caffeine is unsuitable, consider a caffeine-free drink rather than another energy-drink variant.

Relevant brand options

These references concern the named drinks and formats, not every product sold by each brand.

Red Bull

Sugarfree comes in a 250 ml can for shoppers who want a stated caffeine amount in a smaller container.

  • Red Bull states 80 mg caffeine per 250 ml Sugarfree can and lists sucralose and acesulfame K among its ingredients.
  • It still contains caffeine, so include the can when considering caffeine from other sources.

Monster

Monster Energy lists Ultra as a zero-sugar 500 ml can for shoppers who specifically want the larger format.

  • Monster Energy states 150 mg caffeine per 500 ml Ultra can.
  • That is a larger per-can caffeine amount than Red Bull’s stated 80 mg for Sugarfree 250 ml. Check the exact Monster variant rather than applying the Ultra figure to every can.

Lucozade

Energy Zero Sugar Orange is also listed in a 900 ml bottle, a format to consider separately from single cans.

  • Sainsbury’s lists three servings in the 900 ml bottle.
  • Sainsbury’s instructs shoppers to refrigerate it and consume it within four days after opening, which matters if the campsite has no chilled storage.

Joybuy can options

These are sealed-can options for comparing 250 ml and 500 ml zero-sugar formats when packing for a festival. Check the caffeine amount for each named variant rather than assuming cans of the same size have the same contents.

Monster Energy Ultra Zero Sugar, four 500 ml cans

Monster Energy Ultra Zero Sugar 4 × 500 ml

Four individual cans let you open one serving at a time while camping. Monster Energy states 150 mg caffeine per 500 ml Ultra can; account for other caffeine you consume that day.

View on Joybuy
Red Bull Sugarfree, twelve 250 ml cans

Red Bull Sugarfree 12 × 250 ml

The pack contains individual 250 ml cans for single servings at a campsite. Red Bull states 80 mg caffeine per Sugarfree can and lists sucralose and acesulfame K among its ingredients.

View on Joybuy
Monster Ultra White, twelve 500 ml cans

Monster Ultra White 12 × 500 ml

This case provides individual 500 ml cans for a larger group or a longer trip. Check the caffeine declaration on this Ultra White variant: the 150 mg figure for Monster Ultra should not be assumed to apply to a differently named can.

View on Joybuy

Common questions

Does zero sugar mean an energy drink has no caffeine?

No. Monster Energy lists 150 mg caffeine in a 500 ml Ultra can, and Red Bull states 80 mg in a 250 ml Sugarfree can. Check the caffeine amount for the full container separately from its sugar declaration.

What should I check about energy drinks during pregnancy?

Sugar-free energy drinks can still contain caffeine. The NHS advises no more than 200 mg of caffeine a day during pregnancy from all sources, including energy drinks, coffee and tea; read the product warning and count other sources too.

Does Sainsbury’s sell high-caffeine energy drinks to under-16s?

Sainsbury’s states that it does not sell high-caffeine energy drinks to under-16s and applies age verification to products marked ‘not recommended for children’. Check the retailer’s current policy when shopping; this is a Sainsbury’s policy, not a statement about every retailer.

Is a 900 ml zero-sugar bottle convenient for camping?

It depends on whether you can store it as directed after opening. Sainsbury’s lists three servings in the 900 ml Lucozade Energy Zero Sugar Orange bottle and says to refrigerate it and consume it within four days once opened.