How Many Syns in Lemon Curd? Let's Find Out!

Updated on 
16 August, 2025

Can I Have Lemon Curd On Slimming World?

If you're a lover of lemon curd on scones, toast or even pancakes, you might be curious as to how many syns this sweet treat has on the slimming world plan? Is it high in syns?

Lemon curd can have different syns according to how it is made and its ingredients, on average you can expect a tablespoon to have 2.5 syns.

We've composed a syn guide below, discussing why lemon curd is high in syns for a small portion, syn values of lemon curd and some other low syn alternatives.

Why Is Lemon Curd High In Syns?

At 2.5 syns for a tablespoon, lemon curd is quite high in syns for a small portion, you could have up to six tablespoons before using all your 15 syn daily allowance on the plan.

Lemon curd gets its syns from the sugar content, with a tablespoon having 9g of sugar in it, the butter also contributes to its fat content. We would therefore suggest having this curd in moderation like jam, sticking to a teaspoon or tablespoon on your toast or porridge.

Syn Values Of Lemon Curd

Lemon curd is a delicious, zesty spread but can be high in syns due to its sugar content. On Slimming World, most brands have similar syn values, but it’s always worth checking labels. We’ve listed popular brands below so you can compare syn values easily.

Lemon Curd Syn Values (per teaspoon or tablespoon unless stated)

  • Tesco Lemon Curd 411g – 2.5 syns
  • Asda Lemon Curd 411g – 1.5 syns
  • Tesco Finest Zesty Lemon Curd 320g – 2.5 syns
  • Sainsbury's Taste the Difference Lemon Curd 320g – 2.5 syns
  • Sainsbury's Lemon Curd 411g – 3.5 syns
  • M&S Food Sicilian Lemon Curd 325g – 3 syns
  • Morrisons Lemon Curd 411g – 2.5 syns
  • Bonne Maman Lemon Curd 360g – 1.5 syns (per teaspoon)
  • Aldi Specially Selected Lemon Curd 320g – 2.5 syns (per tablespoon)
  • Asda Extra Special Lemon Curd 320g – 2.5 syns
  • Mrs Darlington's Legendary Lemon Curd 320g – 1.5 syns

Low-Syn Alternatives to Lemon Curd

If you want something sweet but lower in syns for your morning toast or baking, try these swaps:

  • Frank Cooper's "Oxford" Fine Cut Oxford Marmalade 454g – 2 syns
  • Tesco Fine Cut Orange Marmalade 454g – 2 syns
  • Rose's Lemon & Lime Fine Cut Marmalade 454g – 1 syn (per teaspoon)
  • Mackays Seville Orange Marmalade 340g – 1 syn
  • Tesco Shredless Orange Marmalade 454g – 2 syns
  • Lidl Maribel Thin Cut Orange Marmalade 450g – 2.5 syns
  • Tesco Strawberry Jam 454g – 2 syns (per tablespoon)
  • Bonne Maman Strawberry Conserve 30g – 1 syn (per teaspoon)

Slimming World Lemon Curd Recipe (Low-Syn & Sugar-Free)

If you love lemon curd but want to save syns, here’s a homemade Slimming World-friendly version.

Ingredients

  • Juice & rind of 1 lemon
  • 3 tbsp sweetener
  • 2 eggs
  • 2 oz fat-free fromage frais

Method

  1. Whisk all ingredients except fromage frais in a heatproof bowl.
  2. Place over a pot of simmering water and stir for around 8 minutes until thickened.
  3. Allow to cool slightly, then mix in the fromage frais.

Final Words

Lemon curd is high in syns because of its sugar content — a tablespoon contains around 9g of sugar. On Slimming World, you could have up to 6 tablespoons before using all 15 daily syns, but moderation is key.

As an alternative, we recommend making your own syn free version at home or checking out other spreads to put on your morning toast which are lower in syns.

Jennifer
Jennifer is a certified nutritionist and weight loss coach with a Master's in Nutrition from Cambridge. With over 10 years experience, she shares healthy recipes and science-backed slimming tips on SheCooksSheEats to help people reach their wellness goals. Jennifer stays up-to-date by regularly attending conferences and continuing her nutrition education. She aims to provide research-backed advice to inspire balanced, happy living.
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