How Many Syns In A McDonalds Happy Meal? Find Out Here!

Updated on 
31 January, 2023

How Many Syns In A McDonalds Happy Meal? Are They High In Syns? Can I Have Them On Slimming World?

If you are craving a Mcdonald's happy meal, the great part about the slimming world is that you can enjoy this fast food on the plan and still lose weight as long as you are tracking the syns in them.

Are McDonald's Happy Meals High In Syns? Can I Have Them On Slimming World?

A Mcdonald's happy meal has on average 24 syns for their hamburger happy meal and 11 syns for their 4-piece chicken nugget happy meal, making them very high in syns and should only be consumed as an occasional treat on the plan.

To find out more about the syns in happy meals, we've put together a syn guide below which will take you through why happy meals are so high in syns, some syn values of McDonald and a recipe for making your happy meal burger at SW friendly home!

Why Are McDonald's Happy Meals So High In Syns?

At anything between 24 and 11 syns for a happy meal, these Mcdonald's options are very high in syns and should be consumed in moderation on the plan. The burger happy meal is the highest syn meal, costing you nearly double your daily syn allowance on the plan.

This happy meal has a high syn value due to the hamburger and fries, which are often full of oil making them high in fat, there is also an apple and low-fat milk drink in the meal, but these are healthier in comparison.

To pick a lower syn happy meal we would suggest going for the chicken nugget options, with their four-piece happy meal having just 11 syns and the 6 piece option 24 syns.

Syn Values Of McDonald's Happy Meals & General Food

To help you stay on track with your syns and still enjoy a McDonald's, we've listed some general syn values from this food chain down below.

Syn Values Of McDonald's Happy Meals & General Food
  • Mcdonald's Crispy Chicken and Bacon Salad - 8 syns with no dressing.
  • Grilled Chicken & Bacon Salad - 1.5 syns no dressing.
  • McDonald’s Main Menu Chicken Selects (each) - 4 syns.
  • Mcdonald's Main Menu Cheeseburger (each) - 15 syns.
  • McDonalds Main Menu McChicken Sandwich - 19.5 syns.
  • Mcdonald's Chicken Selects - 4 syns each.
  • French Fries - Small portion 8.5 syns.
  • Chicken McNuggets - 5.5 syns.
  • Chicken McNuggets - 8.5 syns for a box of 6.
  • McDonald’s Main Menu Quarter Pounder with Cheese (each) - 26 syn.
  • McDonald’s Main Menu Bacon Double Cheeseburger (each) - 25 syns.
  • Mcdonald's French Fries - 12 syns for the medium packet.
  • McDonalds French Fries - 17 syns for a large packet.
  • Crispy Garlic Mayo Chicken One - 24 syns each.
  • The Grilled BBQ Chicken & Bacon One - 18.5 syns.
  • Mcdonald's Grilled Hot Peri Peri Chicken One - 17.5 syns each.
  • Egg & Cheese McMuffin - 15 syns.
  • Mcdonald's Cheesy Bacon Flatbread - 15 syns.

Our Slimming World McDonald's Burger Recipe

If you're a lover of the burger happy meal at McDonald's but don't want to spend all the syns, why not make your own McDonald's burger at home?

This recipe below uses one healthy extra B, one healthy extra A and 2 syns.


  • 450g of reduced fat minced beef.
  • Shredded iceberg.
  • One onion.
  • 30g of cheddar.
  • Pickles.
  • Four wholewheat rolls.
  • 500g of potatoes.

Sauce Ingredients

  • Three spoons of light mayo.
  • One spoon of fat-free Greek yoghurt.
  • A teaspoon of tomato paste and mustard.
  • Pinch of paprika, garlic powder and onion powder.
  • A teaspoon of sweetener.
  • Pickles.


  1. First start by lining a baking tray then make patties out of your ground beef, season them on the outside then put them on the tray, and fry them in some low cal cooking spray in a pan for five minutes on each side.
  2. Next, for the sauce, simply mix all of the ingredients, then cut your chips up and bake for around half an hour in the oven, turning once halfway through.
  3. Build your burger with your toppings and enjoy!
Our Slimming World McDonald's Burger Recipe

Final Words

To conclude, McDonald's happy meals are very high in syns, with their burger meal having 24 syns, six-piece nugget meal having 24 syns and the four-piece nugget meal having 11 syns. To save syns we suggest picking low syn individual items off the McDonald's menu or making your burger at home with our low syn recipe above!

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.
View Bio

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

crossmenuarrow-leftarrow-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram