Syns in Wholegrain Mustard: Complete Slimming World Guide

Updated on 
9 March, 2026
Wholegrain Mustard 2 syn values for Slimming World

Is Wholegrain Mustard High In Syns?

When dieting, condiments such as mustard can add excess calories to your plate without you realising, this is why it's important to track the syns of the mustard you are using in the slimming world.

Wholegrain mustard in particular has 0.5 syns per teaspoon making it a low syn option for spicing up your food, it should, however, be measured and eaten in moderation.

To keep you on track with your syns, we've discussed in further detail below if you can have whole grain mustard on slimming world, some syn values and how it compares to regular mustard.

Can I Eat Wholegrain Mustard On Slimming World?

For just 0.5 syns a teaspoon, there's no reason as to why you can't enjoy wholegrain mustard on the slimming world plan, we would recommend measuring your portion out in spoons to stay on track with your syns however.

Mustard typically is low in fat and could even boost your metabolism, making it an excellent choice to spice up chicken or add to sauces.

Syn Values Of Wholegrain Mustard

Wholegrain mustard has similar syns no matter the type you buy but it can vary according to the brand, we've listed some general wholegrain mustard syns below to help you compare.

  • Maille Wholegrain Mustard 210G - 1 syn per serving.
  • Tesco Wholegrain Mustard 180G - 0.5 syns.
  • Sainsbury's Wholegrain Mustard 180g - 0.5 syns.
  • Sainsbury's Wholegrain Mustard & Honey 185g - 0.5 syns.
  • Grey Poupon Old Style Seed Mustard 210g - 1 syn. 

How Does Wholegrain Mustard Compare To Regular Mustard?

Wholegrain Mustard X syn values for Slimming World

Wholegrain is essentially the same as regular mustard except it has not been ground enough to form a paste with the mustard seeds.

Regular mustard has the average syn values of 0.5 syns a teaspoon just like wholegrain mustard making it low in syns.

Syn Values Of Other Mustards

  • French's America Classic Yellow Mustard 226G Squeezy - 2 syns for 50g.
  • Colman's Original English Mustard 170G - 0.5 syns.
  • Tesco American Style Mustard 370G - 0.5 syns.
  • Tesco English Mustard 190G - 0.5 syns.
  • Tesco French Mustard 185G - 0.5 syns.
  • Maille Dijon Original Mustard 215G - 1 syn.
  • M&S Posh Dog Mustard 300g - 1 syn.
  • Kuhne Mustard Mostaza Senape Medium Hot 255G - 1 syn.
  • Colman's Original English Mustard Powder 57G - 1 syn.
  • Prymat Sarepska Mustard 180G - 1.5 syns.

Final Words

Overall, wholegrain mustard has 0.5 syns a teaspoon making it a great low syn condiment to add spice to a boring dish without you having to spend too many syns. We always suggest measuring out how much mustard you have to stay on track with your syns.

Frequently Asked Questions

How are syn values calculated?

Syn values are calculated using a formula based on calories, saturated fat and sugar content per serving. They’re not the same as calories — a product can be low in calories but higher in syns if it’s high in sugar or fat. Always check the official Slimming World app for the most accurate and up-to-date syn values.

Do syn values change?

Yes. When manufacturers reformulate their products, the syn value can go up or down. This is why we recommend double-checking with the Slimming World app or your consultant, especially if a product’s packaging has changed recently.

How many syns should I have per day?

Most Slimming World members work with 5 to 15 syns per day. Your consultant will advise on the right amount for you. The key is to use your syns on the things you enjoy most — whether that’s a chocolate bar, a glass of wine, or a packet of crisps.

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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