Choose a mini mixer for a separate post-run or social drink, not simply because its small size looks suitable for fuelling a marathon-training run. If you need carbohydrate during a session, plan a drink or food with a known contribution, check the serving information and try it during training; a mixer’s pack size alone cannot tell you what it contributes.
The key distinction is whether you want a small soft-drink serving or a known contribution to your training-fuel plan.
A compact can tells you its volume, not whether its carbohydrate content fits the run you have planned. The UK Sports Institute discusses carbohydrate drinks as an option when a runner needs something to consume before running; check the contribution of the exact drink rather than treating any sweet mixer as equivalent.
If fuelling is already planned separately, a small tonic or ginger ale may suit the serving you want afterwards. Tesco has listed 150 ml Fever-Tree and Schweppes tonic multipacks, while Fentimans announced a 200 ml mixer format in 2021; check the pack currently offered before buying.
If you intend to take a new drink on a run, try the exact product, portion and timing during ordinary training first. A 1992 study published in the International Journal of Sport Nutrition examined a carbonated carbohydrate drink, but its findings cannot establish how you will respond to a particular commercial mixer during a marathon.
Decide what the drink is for before comparing pack sizes: a separate mixer serving and a planned source of carbohydrate answer different needs.
Choose it when: you want a compact tonic or ginger ale after training or socially, with run fuelling planned separately.
Keep in mind: a convenient serving size does not show whether its carbohydrate content fits a training plan.
Choose it when: the session calls for a known carbohydrate contribution from a drink or separately planned food.
Keep in mind: check what a full serving contributes and practise your choice in training; a sports drink is not automatically needed for every run.
| Priority | What to check | Your needs |
|---|---|---|
| Carbohydrate contribution | Read carbohydrate per 100 ml and work out what the complete serving contributes. Compare that figure with the run-fuelling plan you have made, rather than judging by bottle size or sweetness. | If I am relying on a drink for carbohydrate during a run, I want to know what the portion actually provides. The UK Sports Institute identifies a carbohydrate drink as one option for a runner who has not eaten before running; that guidance does not make a tonic mixer a substitute. |
| Serving format | Check the volume of each can or bottle and the number of servings in the pack. Tesco has listed 150 ml Fever-Tree and Schweppes tonic multipacks; Fentimans announced 200 ml mixer formats in 2021. | A small serving would suit the separate drink I want after training, without making it part of my run-fuelling plan. |
| Exact variant | Compare the nutrition tables for the standard, light or slimline products you are considering. Use the carbohydrate and sugar values for the actual serving, not the variant name, to assess its contribution. | If I choose a light or slimline mixer for its flavour, I do not want to assume it contributes the same carbohydrate as the standard version. |
| Ingredients and trialling | Read the exact pack’s ingredients and allergen information, particularly when changing flavour or brand. If you plan to drink it on a run, try that product and portion during normal training. | An unfamiliar drink is something I would rather try before an important long run, when I can judge whether the flavour, carbonation and portion suit me. |
A 150 ml or 200 ml mixer format describes the amount of drink, not its carbohydrate contribution or place in a marathon-training plan.
Check the exact nutrition label and calculate what the whole serving contributes. If the run calls for carbohydrate, plan a drink with a known contribution or separate carbohydrate food.
Research on a carbonated carbohydrate test drink cannot predict your response to a commercial tonic or ginger ale. The 1992 study published in the International Journal of Sport Nutrition does not establish individual marathon tolerance.
Try the exact drink, portion and timing during ordinary training before deciding whether to take it on a longer run.
Variant names do not state how much carbohydrate a complete serving supplies.
Compare the carbohydrate and sugar entries for the exact standard, light or slimline variant you intend to buy.
Tonic and other mixer recipes differ; for example, Fentimans lists quinine among the ingredients of its Connoisseurs Tonic Water.
Read the ingredients and allergen information on the chosen pack whenever you change product or flavour.
These examples help distinguish mixer formats and variants; a brand’s mixer range is not, by itself, a marathon-fuelling plan.
Fever-Tree describes its Premium Indian Tonic Water as a mixer for spirits and fortified wines. Tesco has listed Fever-Tree tonic in 150 ml multipacks.
Tesco has listed both standard and Slimline Schweppes Tonic Water in 12 × 150 ml multipacks.
Fentimans announced a 200 ml range of tonic and other mixers in 2021. Separately, its Connoisseurs Tonic Water product information lists 4.5 g carbohydrate per 100 ml; that figure identifies that product, not every Fentimans mixer.
Britvic’s 2022 announcement described Pink Raspberry Tonic in 200 ml bottles for licensed outlets.
Tesco’s mixer listings have included own-label tonic in a 6 × 250 ml format alongside branded 150 ml tonic multipacks.
These 150 ml tonic and ginger ale multipacks are options for a separate post-run or social drink. If you need a known carbohydrate contribution during a run, assess that need separately rather than choosing from this mixer list by pack size.
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The 150 ml portions suit a separate small tonic serving. Check the exact variant’s carbohydrate, ingredients and allergen information on the pack before including a serving in any run plan; its light variant name does not establish a fuelling contribution.
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This pack provides 150 ml tonic portions for a drink separate from training fuel. If you plan to drink one during a run, check the exact serving’s carbohydrate contribution and ingredients, and try it in ordinary training first.
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The 150 ml format is a compact tonic serving when run fuelling is planned separately. Read the exact pack’s carbohydrate and sugar values, ingredients and allergens rather than treating its serving volume as a fuelling measure.
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These 150 ml ginger ale portions offer a small separate drink after training or socially. Check the light variant’s actual carbohydrate contribution and ingredients if it might form part of a run plan, and try the drink during training before an important run.
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The 150 ml cans provide individual ginger ale servings for a drink separate from run fuelling. If you are considering one during training, check the carbohydrate content of a full can and its ingredients, then try that portion on an ordinary run.
Not on the basis of its size or mixer label. If a session calls for carbohydrate from a drink, check what the exact serving contributes and whether it fits your plan. The UK Sports Institute identifies a carbohydrate drink as one option when a runner has not eaten before running; that does not establish tonic as an equivalent.
Carbonation alone is not a sound substitute for checking the drink and trying it yourself. A 1992 study published in the International Journal of Sport Nutrition reported no significant change in gastrointestinal comfort or exercise performance with a carbonated carbohydrate test drink, but it did not establish individual marathon tolerance for commercial mixers.
Check the serving volume, carbohydrate and sugar information, ingredients, allergen information and date marking on the exact pack. If you intend to count the drink towards a run-fuelling plan, calculate the contribution of the whole portion rather than relying only on a per-100-ml figure.
Those volumes describe compact mixer formats, not a defined carbohydrate serving for marathon training. Tesco has listed 150 ml Fever-Tree and Schweppes tonic multipacks, and Fentimans announced a 200 ml mixer range in 2021. Check the particular drink’s label against your plan before treating its contents as fuel.