Snack a Jacks Salt & Vinegar: calories, salt and nutrition

How many calories are in Snack a Jacks Salt & Vinegar? It varies by pack size: a standard bag (18g) contains 74 kcal and 0.39g of salt. A sharing bag (85g) contains 351 kcal and 1.84g of salt, 31% of the adult daily salt limit.

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Choose a brand, item and pack size to see how calories, salt, saturated fat and sugar compare to daily limits for any age group.

Nutrition by pack size

The table below shows how the nutrition of Snack a Jacks Salt & Vinegar changes across pack formats.

Snack a Jacks Salt & Vinegar contains 413 kcal, 6.5g of fat (0.87g saturated), 82.6g of carbohydrate (1.74g sugar), 3.04g of fibre, 7.83g of protein and 2.17g of salt per 100g.

Snack a Jacks Salt & Vinegar contain 2.17g of salt per 100g, which sounds similar to crisps, but the individual cakes weigh much less. A 23g single pack contains just 0.5g of salt. The full 85g bag delivers 1.84g of salt, comparable to a grab bag of Walkers.

A standard bag (18g) and a sharing bag (85g) contain very different amounts. A standard bag delivers 74 kcal and 0.39g of salt. A sharing bag delivers 351 kcal and 1.84g of salt, 31% of the adult daily limit, from a single product.

This matters because crisps are one of the easiest snacks to eat passively. Opening a sharing bag while watching television, or finishing a grab bag that was opened for a small snack, is common. The table above shows the nutritional impact at each pack size so the difference is visible before reaching into the bag.

How it compares to daily limits by age group

The table below shows how a standard portion of Snack a Jacks Salt & Vinegar compares to daily limits for sugar, salt and protein across age groups.

Salt

Snack a Jacks Salt & Vinegar contains 2.17g of salt per 100g. A standard bag (18g) delivers 0.39g of salt, 7% of the adult daily limit of 6g and 13% of the limit for a child aged 4 to 6 (3g). A sharing bag (85g) delivers 1.84g of salt, 31% of the adult daily limit.

At 2.17g of salt per 100g, this is one of the saltier products in this guide. Regular consumption of high-salt foods is associated with raised blood pressure. The NHS recommends adults eat no more than 6g of salt per day; for children the limit is lower.

Saturated fat

Snack a Jacks Salt & Vinegar contains 0.87g of saturated fat per 100g, 4% of the adult daily guideline of 20g. A standard bag (18g) delivers 0.16g of saturated fat (1% of the adult guideline). A sharing bag (85g) delivers 0.74g (4% of the adult guideline).

The saturated fat content of 0.87g per 100g is relatively low for this type of snack. Most crisps fried in sunflower oil contain 2 to 3.5g of saturated fat per 100g.

Sugar

Snack a Jacks Salt & Vinegar contains 1.74g of sugar per 100g. For most savoury snacks, sugar is a minor component of the seasoning blend rather than a primary ingredient. A standard bag (18g) contains 0.31g of sugar, a negligible contribution to the daily free sugar limit of 30g for adults.

Fibre and protein

Snack a Jacks Salt & Vinegar contains 3.04g of fibre and 7.83g of protein per 100g. A standard bag (18g) provides 0.55g of fibre (2% of the adult daily target of 30g) and 1.41g of protein.

Ultra-processed food: what is really in it

Snack a Jacks Salt & Vinegar is made from one main component: puffed rice and corn snack.

Reading the ingredient list closely, it contains flavourings. Flavourings create or enhance the taste of the product, often replacing or supplementing natural flavour sources to deliver a consistent result across batches.

A home-made equivalent, prepared in one kitchen from whole ingredients, would use a handful of recognisable components with no additives. These processing aids are used because the brief contact time during industrial frying or baking is insufficient to develop the complex, stable flavours the seasoning provides at scale.

Looking at the ingredient list tells a different story from just the headline numbers. The additives and processing aids give this product its consistent flavour at industrial scale.

Allergens at a glance

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Nutrition information from manufacturer official sources and UK FoodData Central. Figures calculated per 100g; per-portion values are proportional estimates and may vary slightly from pack label figures. Reference intakes: EU Reference Intakes for an average adult (2,000 kcal); NHS/SACN salt and saturated fat guidelines. For guidance only, not medical advice.