Flat out? Breakfast smoothies are the ultimate power food to kickstart your day.

The combo of calcium and protein in milk, yoghurt and whey powder, plus the fibre in oats and fruit, make them a filling snack. Feeling peckish? Try one of these recipes, taken from The Abs Diet For Women by David Zinczenko.

1/ Abs Diet Power Smoothie

— 1 cup skim milk
— 2 tbsp low-fat vanilla yoghurt
— ¾ cup instant oats, microwaved in water
— 2 tsp peanut butter
— 2 tsp chocolate whey powder
— 6 ice cubes, crushed

Makes two. Per 230ml serving: 920kJ, 12g protein, 29g carbIs, 4g fat (1.5g sat), 118mg sodium, 3g fibre.

Everything is better with peanut butter, right? If you’re a nut butter fanatic, you’ve got to try this peanut butter breakfast smoothie recipe.

READ MORE: 6 Time-Saving Smoothie Hacks That’ll Change Your Life

2/ Banana-Split Smoothie

— 1 banana
— ½ cup low-fat vanilla yoghurt
— cup frozen orange juice concentrate
— ½ cup skim milk
— 2 tsp whey powder
— 6 ice cubes, crushed

Makes two. Per 230ml serving: 715kJ, 8g protein, 33g carbs, 2g fat (1g sat), 94mg sodium, 2g fibre

If you’re a banana fan but looking to switch up your shake, try this honey pecan breakfast smoothie – it tastes so good you won’t believe it’s healthy!

READ MORE: 9 Smoothie Fails You’re Probably Making Without Realising It

3/ Strawberry Smoothie

— ½ cup low-fat vanilla yoghurt
— 1 cup skim milk
— 2 tsp peanut butter
— 1 cup frozen strawberries
— 2 tsp whey powder
— 6 ice cubes, crushed

Makes two. Per 230ml serving: 778kJ, 11g protein, 26g carbs, 5g fat (2g sat), 151mg sodium, 3g fibre

Here are 10 power breakfast recipes every active girl needs in her life. Plus: 3 protein-packed breakfasts that totally taste like dessert.