Kettle Chips Mature Cheddar & Red Onion: calories, salt and nutrition

How many calories are in Kettle Chips Mature Cheddar & Red Onion? A standard bag (40g) contains 207 kcal and 0.6g of salt. A sharing bag (150g) contains 776 kcal and 2.25g of salt.

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Nutrition by pack size

The table below shows how the nutrition of Kettle Chips Mature Cheddar & Red Onion changes across pack formats.

Nutrition by pack size: Kettle Chips Mature Cheddar & Red Onion

Pack size	Calories	Fat	Sat fat	Sugar	Salt
Single bag (40g)	207 kcal	12.12g	1.52g	1.2g	0.6g
Large bag (80g)	414 kcal	24.24g	3.04g	2.4g	1.2g
Sharing bag (150g)	776 kcal	45.45g	5.7g	4.5g	2.25g

Salt highlighted in amber above 38% of adult daily limit (2.3g), red above 75% (4.5g). All figures calculated from per-100g nutrition.

Kettle Chips Mature Cheddar & Red Onion contains 517 kcal, 30.3g of fat (3.8g saturated), 53.3g of carbohydrate (3g sugar), 3.8g of fibre, 6.3g of protein and 1.5g of salt per 100g.

Kettle Mature Cheddar & Red Onion uses mature cheddar powder and actual dried red onion rather than generic cheese flavouring. It is the most popular flavour in the Kettle range. At 3.8g of saturated fat per 100g it has the highest saturated fat of the core Kettle flavours. A 150g sharing bag delivers 5.7g of saturated fat, 29% of the adult daily guideline.

A standard bag (40g) and a sharing bag (150g) contain very different amounts. A standard bag delivers 207 kcal and 0.6g of salt. A sharing bag delivers 776 kcal and 2.25g of salt, 38% 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 Kettle Chips Mature Cheddar & Red Onion compares to daily limits for sugar, salt and protein across age groups.

Sugar, salt and protein by age group: Kettle Chips Mature Cheddar & Red Onion (standard bag, 40g)

Age group	Sugar (g / % limit)	Salt (g / % limit)	Protein (g / % target)
Age 4 to 6	1.2g / 6%	0.6g / 20%	2.52g / 13%
Age 7 to 10	1.2g / 5%	0.6g / 12%	2.52g / 9%
Age 11 to 17	1.2g / 4%	0.6g / 10%	2.52g / 6%
Adult	1.2g / 4%	0.6g / 10%	2.52g / 5%

Based on standard portion. Sugar and salt % vs NHS/SACN daily limits. Red = 75%+ of limit, amber = 20-74%, green = under 20%.

Salt

Kettle Chips Mature Cheddar & Red Onion contains 1.5g of salt per 100g. A standard bag (40g) delivers 0.6g of salt, 10% of the adult daily limit of 6g and 20% of the limit for a child aged 4 to 6 (3g). A sharing bag (150g) delivers 2.25g of salt, 38% of the adult daily limit.

Saturated fat

Kettle Chips Mature Cheddar & Red Onion contains 3.8g of saturated fat per 100g, 19% of the adult daily guideline of 20g. A standard bag (40g) delivers 1.52g of saturated fat (8% of the adult guideline). A sharing bag (150g) delivers 5.7g (29% of the adult guideline).

The saturated fat content of 3.8g per 100g is moderate for this type of snack. Most crisps fried in sunflower oil contain 2 to 3.5g of saturated fat per 100g.

Sugar

Kettle Chips Mature Cheddar & Red Onion contains 3g 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 (40g) contains 1.2g of sugar, a negligible contribution to the daily free sugar limit of 30g for adults.

Fibre and protein

Kettle Chips Mature Cheddar & Red Onion contains 3.8g of fibre and 6.3g of protein per 100g. A standard bag (40g) provides 1.52g of fibre (5% of the adult daily target of 30g) and 2.52g of protein.

Ultra-processed food: what is really in it

Kettle Chips Mature Cheddar & Red Onion is made from one main component: kettle-cooked potato chips.

Reading the ingredient list closely, it contains flavourings and yeast extract. Flavourings create or enhance the taste of the product, often replacing or supplementing natural flavour sources to deliver a consistent result across batches. Yeast extract adds savoury depth and amplifies perceived saltiness without adding extra salt, a technique known as flavour enhancement.

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.

Kettle-cooked potato chips

Select Potatoes, Sunflower Oil, Mature Cheddar and Red Onion Seasoning (Mature Cheddar Powder (Milk), Dried Red Onion, Sea Salt, Yeast Extract, Onion Powder, Natural Flavouring). Mature cheddar powder rather than processed cheese flavouring.

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.

Processing (NOVA classification)

Kettle Chips Mature Cheddar & Red Onion falls into NOVA group 4, ultra-processed food. The NOVA classification system groups foods by the extent and purpose of the processing involved. Group 4 covers products formulated from substances derived from foods plus additives, with little or no whole food recognisable in the final product. In this item that includes flavourings and yeast extract. This classification applies to almost all commercially produced flavoured crisps and snacks, regardless of whether they are marketed as baked, hand-cooked, natural or healthier.

Allergens at a glance

Allergen information: Kettle Chips Mature Cheddar & Red Onion

Wheat	May contain traces
Rye	Not present
Barley	Not present
Oats	Not present
Sesame	Not present
Soya	May contain traces
Milk	Contains
Eggs	Not present
Fish	Not present
Crustaceans	Not present
Celery	Not present
Mustard	Not present
Molluscs	Not present
Lupin	Not present

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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.