Who is this choice for?

Households comparing fat across pack sizes

If several people will share a milkshake, compare fat and saturates per 100ml before working out what each person is likely to pour. The NHS advises comparing food labels when choosing lower-fat products.

Families who prefer separate portions

Individual cartons avoid having to divide up an opened bottle. Sainsbury's lists Yazoo Chocolate as six 200ml cartons, with nutrition figures for both 100ml and a full carton.

Shoppers weighing different label claims

Check fat and sugars separately rather than relying on a no-added-sugar statement. Asda lists the 400ml Mars chocolate drink as no added sugar, alongside 2.2g fat per 100ml.

What should you compare?

Start with the nutrition figures per 100ml so different pack sizes are comparable, then consider the serving and whether the format works for your household.

PriorityWhat to checkYour needs
Fat and saturates Compare both lines per 100ml, then check the intended serving. Sainsbury's and Asda list 1.1g fat and 0.7g saturates per 100ml for the 1-litre Yazoo strawberry and banana drinks; Asda lists 2.2g fat and 1.4g saturates for the Mars drink. I'm choosing a drink for a lower-fat eating pattern and want to know what my usual serving contains.
Sugars and claims Read the total sugars line as well as any no-added-sugar statement. Sainsbury's lists 4.7g sugars per 100ml for Yazoo Chocolate cartons and 8.7g for the 1-litre strawberry bottle; Asda lists 8.7g for the banana bottle. Lower fat matters to me, but I don't want to assume the bottle with the lower fat figure also has less sugar.
Serving format Check the size of each individual drink and the bottle's stated serving count. Sainsbury's lists six 200ml Yazoo Chocolate cartons and five 200ml servings in the 1-litre strawberry bottle. Separate cartons would make portions simpler in our household, or we may prefer to pour from one shared bottle.
Allergens and storage Read the current pack's allergen declaration and opened-pack instructions. Sainsbury's identifies milk in the Yazoo Chocolate drink and says to refrigerate its 1-litre strawberry bottle after opening and drink it within three days; Asda lists milk and barley in the Mars drink. Everyone who will drink it needs to be able to use the same pack, and we need time to finish a bottle after opening.

What can make the comparison misleading?

  • Reading “no added sugar” as “low fat”

    The statements describe different things. Asda lists the no-added-sugar Mars chocolate drink at 2.2g fat and 6.5g sugars per 100ml.

    Compare the fat, saturates and total sugars lines separately before choosing.

  • Comparing a whole bottle with one carton

    Sainsbury's lists five 200ml servings in a 1-litre Yazoo strawberry bottle, while each carton in its Yazoo Chocolate multipack contains 200ml.

    Use the per-100ml figures for comparison, then calculate the nutrition for the amount each person will actually drink.

  • Assuming the lower-fat option has less sugar

    The 1-litre Yazoo strawberry and banana drinks list 1.1g fat and 8.7g sugars per 100ml, according to Sainsbury's and Asda. Sainsbury's lists the Chocolate cartons at 1.4g fat and 4.7g sugars per 100ml.

    Decide which figures and serving format matter for this purchase rather than choosing by one number.

  • Overlooking the label on the pack

    Allergen details and storage instructions matter particularly when several people will use one purchase. Sainsbury's instructs shoppers to refrigerate its 1-litre Yazoo strawberry drink after opening and drink it within three days.

    Check the exact pack's ingredients, allergen statement and storage instructions before serving it.

Brand and retailer references

Yazoo

The compared Yazoo formats include 200ml chocolate cartons and shareable 1-litre strawberry and banana bottles.

  • Sainsbury's lists the chocolate drink as a 6 x 200ml pack with 4.7g sugars per 100ml.
  • Sainsbury's and Asda list 8.7g sugars per 100ml for the compared 1-litre strawberry and banana drinks.

Müller FRijj

Tesco lists the compared chocolate milkshake as a 330ml individual bottle, rather than one of the family formats above.

  • Its Tesco listing gives 1.3g fat per 100ml for comparison with other drinks.
  • The same listing gives 11.4g sugars per 100ml; a single bottle does not provide separate cartons for a household.

Mars

Asda lists the compared chocolate milkshake as a no-added-sugar drink in a 400ml bottle.

  • The Asda listing states 6.5g sugars per 100ml, allowing a separate check of total sugars.
  • It also states 2.2g fat per 100ml and identifies milk and barley as allergens.

Sainsbury's

Its listings provide the compared Yazoo Chocolate multipack and 1-litre strawberry bottle details.

  • The listings state pack sizes and nutrition figures that can be compared per 100ml.
  • Check the physical pack for its current ingredients, allergen details and storage instructions.

Asda

Its listings provide the compared Yazoo Banana 1-litre and Mars Chocolate 400ml product details.

  • Both listings give fat and sugars per 100ml for a like-for-like nutrition comparison.
  • Confirm the details on the exact pack before using its allergen or nutrition information.

Joybuy multipack options

These are separately packed protein shakes rather than the Yazoo family milkshakes compared above. Their stated pack sizes may suit shoppers considering individual drinks, but check each current label's fat, sugars, allergens and intended use before choosing for a household.

REP Protein Shakes Vanilla Flavour, 8 x 250ml

REP Protein Shakes Vanilla Flavour 8 x 250ml

The 8 x 250ml format provides separate drinks rather than a shared bottle. This is an adult-focused protein shake, so check whether its intended use, nutrition and allergen information suit everyone who would drink it.

View on Joybuy
Applied Nutrition Protein Nutrition Shake White Chocolate Flavour, 8 x 330ml

Applied Nutrition Protein Nutrition Shake White Chocolate Flavour 8 x 330ml

The 8 x 330ml format offers separate drinks, each larger than a 200ml carton. It is positioned as a protein shake for adults; check the current pack's nutrition, allergens and intended use for your household.

View on Joybuy
Applied Nutrition Protein Nutrition Shake Double Chocolate Flavour, 8 x 500ml

Applied Nutrition Protein Nutrition Shake Double Chocolate Flavour 8 x 500ml

This pack contains eight 500ml drinks, so the amount in each is worth considering when planning portions. It is an adult-focused protein shake; check the current pack's nutrition and allergen details before choosing it for shared household use.

View on Joybuy

Frequently asked questions

Does “no added sugar” mean a milkshake is low in fat?

No: the statements concern different parts of the nutrition label. Asda lists its no-added-sugar Mars Chocolate Milk Shake Drink at 2.2g fat per 100ml, so check fat and total sugars separately.

Should a family choose a 1-litre bottle or individual cartons?

Choose cartons if separately packed 200ml drinks make serving easier; a 1-litre bottle allows the household to pour its own amounts. Sainsbury's lists six 200ml Yazoo Chocolate cartons and five 200ml servings in its Yazoo strawberry bottle, so compare nutrition for the amount actually served.

How long can the compared large bottle be kept after opening?

Sainsbury's instructs shoppers to refrigerate its 1-litre Yazoo Strawberry Milk Drink after opening and drink it within three days. Check the storage instruction on the exact pack you buy rather than applying that period to every milkshake.

Which allergens should shoppers check?

Check the declaration on each current pack. Sainsbury's identifies milk in the compared Yazoo Chocolate drink, while Asda lists both milk and barley in the compared Mars drink; do not assume different flavours or brands have identical ingredients.