For a 5K, a familiar still smoothie can be a liquid-carbohydrate option if you have missed breakfast or dislike eating beforehand; the UK Sports Institute says a sports drink is probably unnecessary after a carbohydrate-based breakfast. Sparkling juice and fruit-flavoured soft drinks are different products, and the NHS says fizzy drinks can contribute to bloating, so consider your tolerance before drinking one close to a run. If you are buying a protein-labelled smoothie for afterwards, check the exact bottle rather than assuming it offers a pre-run advantage.
If eating before a morning run is difficult, a familiar still smoothie may be a convenient way to drink some carbohydrate. The UK Sports Institute identifies drinking carbohydrate as an option when there has been no time for breakfast or eating beforehand is unappealing.
A still drink may be easier to fit into a familiar pre-run routine if fizzy drinks have caused bloating before. The NHS identifies fizzy drinks as one possible cause of gas-related bloating.
If you want to compare protein-labelled smoothies for after a 5K, check the amount in the exact bottle and consider what else you plan to eat. A protein label alone does not establish a pre-run benefit.
Decide when you plan to drink it, then check whether the product is a still smoothie, sparkling juice or a flavoured soft drink. Similar fruit names do not make those drinks interchangeable.
Consider it when: You have missed breakfast or dislike solid food before running, and have tolerated the drink before.
Bear in mind: A large bottle does not count as several 5 A Day portions; the NHS counts juice and smoothies together up to 150ml a day for that purpose.
Consider it when: You specifically want juice with fizz and know that carbonation agrees with you.
Bear in mind: It is not a smoothie, and the NHS identifies fizzy drinks as a possible cause of bloating.
Consider it when: You are choosing a fizzy drink for its flavour rather than expecting a smoothie.
Bear in mind: Ingredients vary: Tesco describes one summer-fruits sparkling water as containing apple juice from concentrate and sweetener.
| Priority | What to check | Your needs |
|---|---|---|
| Before-run food | Check whether you have already eaten a carbohydrate-based breakfast, when you plan to drink, and whether the smoothie is familiar. The UK Sports Institute says drinking carbohydrate can be an option if breakfast was missed or eating is unappealing. | If I cannot manage breakfast, I want a drink I have tolerated before. If I have eaten, I do not want to assume I need another fuelling product. |
| Carbonation | Check whether the label says sparkling or carbonated, and recall how fizzy drinks have affected you. The NHS identifies them as a possible cause of gas-related bloating. | Fizz has bothered me before, so I would rather keep it away from the start of my run. |
| Drink type | Read the product description and ingredients: a smoothie, sparkling fruit juice and flavoured water are distinct products. Check the nutrition panel of the particular drink rather than judging it by its fruit flavour. | I want to know whether I am buying a smoothie or simply a fruit-flavoured fizzy drink. |
| Portion | Compare bottle size with the amount you intend to drink. For 5 A Day, the NHS counts fruit juice, vegetable juice and smoothies together up to a combined 150ml a day. | A bottle may contain more than I plan to have at once; its size should not decide my serving for me. |
| After-run choice | If considering a protein-labelled smoothie, check protein per bottle, ingredients and serving size for the exact flavour. Tesco lists 10g protein per bottle for Naked Protein Machine Tropical; that figure does not describe other bottles. | After my run, I want to compare the particular drink with the food I expect to have, rather than buy it for a presumed pre-run effect. |
Fruit-led names can describe quite different drinks. Sainsbury's describes Appletiser as sparkling apple juice, while Tesco describes a summer-fruits sparkling water as flavoured water with apple juice from concentrate and sweetener.
Read the product description and ingredients before deciding whether the drink fits what you intended to buy.
The NHS identifies fizzy drinks as one possible cause of gas-related bloating. That matters if you already know carbonation makes you uncomfortable.
Keep a previously tolerated drink for the run and try an unfamiliar sparkling option at another time.
The NHS counts fruit juice, vegetable juice and smoothies together up to a combined 150ml a day for 5 A Day, regardless of a larger bottle size.
Check the bottle volume and decide how much you intend to drink; keep the 5 A Day rule separate from your pre-run food choice.
A protein amount on a bottle tells you what that product contains, not whether it will improve your run.
Check the exact bottle's nutrition and ingredients, and consider it in the context of what you plan to eat after the 5K.
These references help distinguish drink types and particular product lines; they do not describe every product sold under each name.
Tesco lists innocent fruit smoothies and Super Smoothies among its still smoothie options.
Tesco lists Naked smoothies, including a Protein Machine Tropical variant.
A sparkling apple-juice option rather than a blended smoothie. Sainsbury's describes its 150ml can as gently sparkling 100% apple juice from concentrate.
Tesco lists still smoothies and, separately, sparkling fruit-flavoured water.
M&S lists ready-made fruit smoothies and a separate Sparkling British Apple Spring Water product.
These options are for comparing sparkling fruit drinks when shopping around a 5K. They are not still smoothies: check the drink type and your tolerance of fizz before choosing one to have close to a run.
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For someone specifically choosing sparkling apple juice rather than a smoothie. The pack contains six 250ml servings; consider the amount you intend to drink and whether you tolerate fizz before running.
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A pineapple drink to compare with the sparkling options, in a pack of three 600ml bottles. Check the product description for its drink type and ingredients rather than treating it as a smoothie.
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A sparkling apple-and-mango drink in four 250ml servings, rather than a still smoothie. If you plan to drink it before a 5K, consider whether fizz has previously made you uncomfortable.
Not as a like-for-like product: sparkling juice, flavoured water and soft drinks differ from a smoothie. If you are prone to bloating, bear in mind that the NHS identifies fizzy drinks as a possible cause; choose a drink you already tolerate close to the run.
Not necessarily. The UK Sports Institute says a sports drink is probably unnecessary if you have had a carbohydrate-based breakfast. It identifies drinking carbohydrate as an option when you have missed breakfast or do not like eating before a run.
Consider the exact bottle alongside what you plan to eat after the run, rather than assuming its protein label makes it useful beforehand. Tesco lists 10g protein per bottle for Naked Protein Machine Tropical; check the label because that figure does not apply to every smoothie.
The NHS counts fruit juice, vegetable juice and smoothies together up to a combined 150ml a day for 5 A Day. A larger bottle does not count as additional portions under that rule.
Check the product description first to distinguish a smoothie from sparkling juice, flavoured water or a soft drink. Then read the current pack for its ingredients, allergens, nutrition per 100ml, serving size and storage instructions; compare figures for the particular flavours and bottles you are considering.