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Lowest Carb Peanut Butter (UK Brands)

Peanut butter has rapidly become a diet staple for those who follow low-carb plans such as keto. But with so much choice on our supermarket shelves, it can be difficult to work out which fits best with your dietary requirements.

I’ve collated all of the nutritional information for the top brand peanut butter products that are available in most supermarkets to find out which contain the most carbs per serving and which should be avoided if you’re trying to limit your sugar intake.

Read on to see the lowest to highest peanut butter products and how to make the healthiest choices if you’re following a low-carb plan.

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Lowest To Highest Carb UK Peanut Butter

The peanut butter that I’ve compared is all available to buy in most UK supermarkets; if you’re looking for USA brands, click the link below:

Lowest To Highest Carb Peanut Butter (USA Brands Compared)

Please note that these are all ready-to-eat peanut butter products and not the powdered version, which is often a low-carb option.

For this article, all servings are the same and based on a one tablespoon or 15g portion, which is the recommended serving size in the UK.

No Added Sugar Low-Carb Peanut Butter

It’s important to note that most brands of peanut butter are low-carb and contain 1-3g of carbs per 15g serving. However, the peanut butter at the higher end of the scale might contain added sugar which is generally avoided on a low-carb diet.

To keep things simple, I’ve split out peanut butter that doesn’t contain sugar and those that do into two separate charts.

All of the peanut butter products in the table below don’t contain any added sugar and are listed in order of lowest carbs to highest.

The lowest carb peanut butter I found was Biona Organic which contains just 1.1g of carbs per serving and is made from 100% peanuts.

Although none of the peanut butter products below contain sugar, it’s worth noting that some have added oil such as palm oil, which people often choose to avoid due to ethical reasons.

Peanut Butter Brand & ProductCarb Content Per 15g ServingPeanut Content & Notes
Biona – Organic Crunchy or Smooth1.1g100% peanuts – Lowest Carb
Whole Earth – Crunchy Peanut Butter1.1g97% peanuts – contains palm oil
Whole Earth – Smooth Peanut Butter1.4g96% peanuts – contains palm oil
Manilife – Deep Roast Smooth1.4g99.1% peanuts – high oleic
Manilife – Deep Roast Crunchy1.5g99.1% peanuts – high oleic
Propper Nutty – Slightly Salted1.6g99.5% peanuts
Sunpat – Simply Nutty Smooth1.7g95% peanuts – contains peanut oil
Propper Nutty – Nowt But Nuts1.7g100% peanuts
KP – Smooth & Crunchy Peanut Butter1.7g95% peanuts – contains rapeseed & soya oil
Meridian – Smooth & Crunchy1.8g100% peanuts
Pip & Nut – Smooth & Crunchy1.8g99.6% peanuts
Nuts About Nature – Smooth & Crunchy1.8g100% peanuts
Marmite – Smooth & Crunchy1.8g87% peanuts – added peanut oil & yeast extract
Manilife – Original Roast Smooth & Crunchy1.8g99.1% peanuts – high oleic
Morrisons – 100% Smooth & Crunchy Peanut Butter1.8g100% peanuts
Aldi (The Foodie Market) – 100% Smooth & Crunchy1.8g100% peanuts
ASDA – 100% Smooth & Crunchy2g100% peanuts
Sunpat – Simply Nutty Crunchy2.1g96% peanuts – contains peanut oil
M&S – 100% Crunchy2.4g100% peanuts
M&S – 100% Smooth2.5g100% peanuts
Yumello – Crunchy Peanut Butter2.6g95.5% peanuts – high oleic, contains argan oil
Table to show peanut butter with no added sugar in order of lowest to highest carbs

Peanut Butter With Added Sugar

The peanut butter products in the table below all contain added sugar, which is usually avoided on low-carb diets.

As you can see, peanut butter that falls into this category is mostly supermarket own brands and contain a lower peanut percentage due to the fact they have added oil and sugar. It’s also worth noting that they’re not necessarily higher in carbs than better quality peanut butter; it just gets masked by extra oil, which increases the fat content.

Peanut butter with added sugar and oil is generally the cheaper option because it contains less peanuts but is not usually the healthiest.

Peanut Butter Brand & ProductCarb Content Per 15g ServingPeanut Content & Notes
Morrisons – Crunchy Peanut Butter1.6g92% peanuts – added sugar, palm & peanut oil
Morrisons – Smooth Peanut Butter1.7g90% peanuts – added sugar, palm & peanut oil
Stockwell & Co (Tesco Brand) – Crunchy1.7g87% peanuts – added sugar, palm & rapeseed oil
ALDI Grandessa – Smooth1.8g95% peanuts – added sugar & palm oil
ALDI Grandessa – Crunchy1.8g96% peanuts – added sugar & palm oil
ASDA – Smooth1.8g94% peanuts – added sugar, palm & peanut oil
ASDA – Crunchy1.8g95% peanuts – added sugar, palm & peanut oil
M&S – Smooth1.8g90% peanuts – added sugar, palm & sunflower oil
Sainsbury’s – Crunchy1.8g97% peanuts – added sugar & palm oil
Sunpat – Smooth & Crunchy1.9g95% peanuts – added sugar & peanut oil
M&S – Crunchy2g91% peanuts – added sugar, palm & sunflower oil
Sainsbury’s – Smooth2.1g96% peanuts – added sugar & palm oil
Tesco – Smooth2.1g94% peanuts – added sugar, palm & peanut oil
Tesco – Crunchy2.1g95% peanuts – added sugar, palm & peanut oil
Table to show peanut butter with added sugar in order of lowest to highest carbs

Choosing The Best Low-Carb Peanut Butter

Although there’s not always much difference in carbs per serving of peanut butter, the best and healthiest options if you’re on a low-carb diet are products made from 100% peanuts or just peanuts and a little salt (depending on which you prefer).

Some lower-carb products still contain added sugar, and many have added oil to prevent them from splitting.

Although some people avoid peanut butter that needs stirring before use, it only splits because of the natural oil found in peanuts and is not something to be concerned about.

There are some peanut butter supermarket own brands that have no added sugar, but you need to choose the ones that are made from 100% peanuts because the regular (or non-stir) versions all contain sugar and added oil (usually palm oil).

If in doubt, check the nutritional information on the label for peanut content and to make sure there’s no sugar and preferably no oil.


Can you eat peanut butter on the keto diet (UK)?

Yes, most kinds of peanut butter are low-carb, high-fat, and high-protein, which is a perfect ratio for the keto diet. However, those with added sugar should be avoided, and 100% peanut products are the best choice.

Which peanut butter is low in carbs and high in protein?

Meridian Smooth or Crunchy Peanut Butter is an excellent choice if you’re looking for a low-carb, high-protein product. It contains 1.8g of carbs per 15g serving and 4.5g of protein.

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