Mushrooms on Slimming World: Syn-Free, Low-Calorie, and Delicious!

Updated on 
4 August, 2023

Mushrooms on Slimming World: A Syn-Free, Low-Calorie, and Delicious Way to Add Flavor to Your Meals

If you're a lover of mushrooms, you might be wondering if these veggies are syn-free on the slimming world or if you have to syn them.

Can I Have Mushrooms On The Slimming World Plan? Are They Syn Free?

Mushrooms are indeed syn free on the slimming world plan, meaning you can use them in a variety of meals, whether sauteed on toast for breakfast or as part of a pasta sauce.

In our syn guide below we've discussed if all kinds of mushrooms are syn-free on the slimming world, other syn free veggies you can add to your meals and some slimming world recipes for using up mushrooms below!

Are All Mushrooms Syn Free On The Slimming World?

Typical mushrooms are a great syn-free veggie to add to your meals on the slimming world plan, whether you use them to bulk up vegetarian meals or add them into flavour dishes.

Mushrooms are also excellent for weight loss thanks to them being high in protein and fibre, they are also fairly low in calories and full of healthy antioxidants for the body. To keep your mushrooms low in syns make sure to use low cal cooking spray.

Syn Values Of Mushrooms

Nearly all kinds of mushrooms in all forms are syn free on the slimming world plan, we've listed the syn values below to help you out.

  • Oyster Mushrooms, Raw - Syn free.
  •  Shiitake Mushrooms, Cooked - Syn free.
  •  Portobello Mushrooms, Raw - Syn free.
  •  Chestnut Mushrooms, Raw - Syn free.
  •  Tesco Stuffed Mushrooms with Garlic & Cheese 200g - 5 syns.
  •  Asda Baby Button Mushrooms 200g - Syn free.
  •  Sainsbury's Sliced White Mushrooms - Syn free.
  •  Tesco Breaded Garlic Mushrooms 400g - 5 syns.
  •  Seasons Harvest Freshly Frozen Sliced Mushrooms 600g - Syn free.
  •  Asda Whole Button Mushrooms in Water 285g - Syn free.
  •  Sainsbury's Sliced Button Mushrooms in Water 290g - Syn free.
  •  Kingfisher Oriental Dried Shiitake Mushrooms 40g - Syn free.
Syn Values Of Mushrooms

Other Syn Free Vegetables

One of the great parts about the slimming world plan is that there are lots of syn free veggies you can use to cook with, we've listed some more to help you out below.

  • Alfalfa sprouts
  •  Bean sprouts
  •  Beetroot
  •  Brussels sprouts
  •  Butternut squash
  •  Cabbage
  •  Carrots
  •  Cassava
  •  Cauliflower
  •  Chinese leaf
  •  Courgettes
  •  Cucumber
  •  Green beans
  •  Garlic
  •  Gherkins
  •  Herbs
  •  Kale
  •  Mixed Salad Leaves
  •  Mushrooms
  •  Okra
  •  Onion
  •  Pak choi
  •  Parsnips
  •  Peppers
  •  Spinach
  •  Spring greens
  •  Spring onions
  •  Sweet potatoes

Slimming World Recipes With Mushrooms

If you've got a pack of mushrooms in the fridge, there are plenty of low syn or syn-free slimming world recipes you can make with these veggies below.

Mushroom Pappardelle


  • 500g dried pappardelle pasta.
  •  450g of mushrooms.
  •  Can of tomatoes.
  •  90g of quark.
  •  Large pinch of dried herbs.
  •  Low-calorie cooking spray.
  •  One red pepper.
  •  150ml hot vegetable stock.
  •  1 tbsp tomato purée.


  1. Start by cooking the pasta then spray a pan and fry the mushrooms for five minutes, add in the pepper and fry again then the tomatoes, quark and herbs. Add the paste and stock then bring to a boil and simmer for ten minutes.
  2.  Stir into the pasta next and serve with a salad!

Mushrooms On Toast


  • Two slices of wholemeal bread.
  •  200 grams of mushrooms.
  •  Chopped garlic.
  •  Spoon of quark.
  •  Seasoning.


  1. Start by heating your pan and frying off the mushrooms then add in the garlic and toast your bread.
  2.  Add in the quark to make the mix creamy, season and enjoy!
Slimming World Recipes With Mushrooms

Final Words

To conclude, mushrooms are syn-free on the slimming world plan, no matter the type or if they are dried/canned. Mushrooms are healthy veggies to have and are a good source of protein and fibre, just make sure to cook them in low cal cooking spray to keep them syn free.

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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