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I’ll say this upfront: no smoothie burns fat while you sit there drinking it. What this smoothie actually does is keep you full, cut down on mindless snacking, and make it easier to stick with your goals — which, over weeks and months, is what actually transforms the bod.
I crafted this fat-burning smoothie around a few ingredient combos that show real research support for fullness and blood sugar, then made sure it actually tastes good enough that I’d drink it often. That’s the whole strategy. If your goal this season is to slim down, start here — this recipe is one of our top-rated weight loss smoothies.
Ingredients in Fat-Burning Smoothie
- Kale: the fiber and bulk in this smoothie — barely tastes like anything once it’s blended with the fruit.
- Cucumber + celery: mostly water, so they stretch the smoothie into a bigger, more filling glass without adding many calories.
- Chia seeds: they swell up and thicken the smoothie, plus add a bit of staying power between the fiber and plant-based fat.
- Grapefruit: brings natural sweetness and the fullness benefit noted above. Removing the inner membrane before blending cuts most of the bitterness.
- Green tea: swapped in for plain water as the liquid base, so you get a little natural caffeine along with the antioxidants.
- Pineapple: balances out the grapefruit’s tartness and makes the whole thing taste more like a treat than a health food.
- Protein powder: added at the end so it blends without turning gritty — this is what turns the smoothie into something that holds you until lunch instead of an hour.
More Ingredient Combos
- Cacao + almonds: cacao’s flavanols are an active research area (including work published in BMJ) — and more importantly, chocolate that’s actually good for you makes a routine you’ll keep.
- Oats + blueberries: oats are the fiber workhorse of this whole list. The blueberry belly-fat study you may have seen was done in rats — promising, not proof — but berries + oats is a fullness combo I’d bet on regardless.
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How to Make Fat-Burning Smoothie
Of all the recipes I’ve created, this is the one I come back to: greens, fiber, and superfoods that curb my cravings and keep me energized until lunch. Five minutes, one blender — here’s how:
- Fill your blender with kale, cucumber, celery, chia seeds, grapefruit and chilled green tea.
- Puree until smooth.
- Add frozen pineapple. Remove the grapefruit’s inner membrane to cut bitterness — or swap in orange + lemon.
- Blend on high speed until combined (about 30 seconds).
- Add one serving protein powder and blend on low speed just to mix.
- Pour into a glass and serve chilled.
Common Questions
It’s best fresh, but you can store it in an airtight container in the fridge for a few hours. Give it a good shake before drinking since the chia seeds will settle.
Yes, though it won’t hold you as long. If you skip it, consider adding a spoonful of nut butter or extra chia seeds for staying power instead.
Orange and lemon together give you a similar tart-sweet balance without the bitterness, if grapefruit isn’t your thing.
Fat-Burning Smoothie
Jen HansardVideo
Ingredients
- 1 cup kale
- 1 cucumber chopped
- 1 tablespoon chia seeds
- ½ grapefruit peeled and seeded
- 1 stalk celery chopped
- ½ cup green tea chilled
- 1 cup pineapple frozen
- 1 serving whey protein isolate
Instructions
- Place kale, cucumber, chia seeds, grapefruit, celery and green tea into blender.
- Puree on high-speed until smooth.
- Add frozen pineapple to blender. Blend again on high-speed until everything is pureed.
- Add one serving protein powder and blend on low.
- Pour into a glass and enjoy!
Recipe Notes
- On medication? Grapefruit interacts with some prescriptions — swap in orange or clementine
- Pith power: The pith and peel of the grapefruit are extremely bitter but are beneficial in small amounts. To lessen the bitterness of the grapefruit, remove the fruit from the inner membranes as well as peel before using.
- Vegan? Swap whey protein with homemade protein powder or preferred powder.
- Prep ahead: chop the kale, cucumber, and celery and freeze in a bag so this comes together even faster on busy mornings.
- Adjust the tartness: if grapefruit is too bitter for you even after removing the membrane, start with half a grapefruit and add more to taste.
- Serve it cold: this one’s best straight after blending, over ice if you like it extra chilled — the texture gets watery if it sits too long.
Nutrition
Equipment
Dietary Adjustments & Substitutions
Need to swap an ingredient or accommodate a food allergy? Click the button below for tailored suggestions just for you:
Hi.
I am unable to eat/drink grapefruit due to a certain medication that I am taking long term. What can I use as an alternative but with equal results?
Many Thanks
Tracie
Hi Tracie! You could try oranges, mangoes, peaches, pomelos, or tangerines. They would change the taste a little, and possibly the results but would be great substitutes!
I am excited to start this journey.
I got your book, ‘Simple Green Smoothies’
Thanks for sharing your Success with the Whole.
So happy for you, Ann-Marie! You will looooove all the smoothie recipes, the book has so many!
I absolutely love this smoothie! Only just started having it on a daily basis to help my fat loss journey so haven’t actually lost any weight yet but I feel so full but also so energised after this that I feel for sure it’ll help me! Plus, it actually tastes really nice! If I make a big batch at the start of the week, how long will it keep for in the fridge? Also, can it be frozen? Thanks SO so much for sharing! You’ve got a new fan ☺️
Yay Sam! So glad you’re feeling the energy from this one, it’s one of my favorites! Be sure to check out our Spring Cleanse when it gets released! It should keep a couple days in the fridge. When I freeze, I typically just put the ingredients in a freezer bag (not the liquids) and then use that to blend for the day.
i just started drinking these, i froze mind and took it out when i went to work. By lunchtime(6hrs thaw) it was kind of a sorbet consistency. Instead of drinking it, i had it with a spoon, which was equally enjoyable. I really love this smoothy as well. It hides the protein powder , that i don’t care for most day.
Love this, Kristal! I’m definitely going to try that too!
Ah fabulous, thank you both for your replies! I’ll definitely check out the spring cleanse!
You’re so welcome, Sam! I can’t wait for the spring cleanse info to come out!
You have a beautiful smile.
Thanks so much for the kind words!
I loved this smoothie – So, so good!
Grapefruit are out of season what can I use instead, grapefruit juice?
Thank you!
Hi Angharad! I would recommend oranges, mangos, pineapple or lemon, depending on the smoothie!