Hey girls!
Welcome to day three of our special Flat Tummy Challenge.
Don’t give up – keep going with the challenge at your own pace!
On today’s agenda: ⭐️ 1 ab session, 🥗 1 menu that combines enjoyment with balanced eating, and 💪 1 tip to make your exercises even more intense.
Ready to carry on with the Flat Tummy Challenge with us? Let’s go! 💪
⭐️ Flat tummy exercises ⭐️
Today’s short session works your abs and targets the area around your love handles.
JACKKNIFE CRUNCH

For this exercise:
- Lie on your back on the floor with your legs straight.
- Stretch your arms out behind your head.
- Breathe out and raise your arms and legs at the same time so that they meet at the top of the movement. This is called the jackknife position. At the top of this step, you should be balancing on your pelvis only. Your legs should be straight and your arms parallel to your legs.
- Breathe in and lower your arms and legs to return to the starting position.
- Do 3 sets of 15 reps.
LOVE HANDLES + ElastiBody

Equipment needed: 1 resistance band.
If you don’t have one yet, we recommend the Cellublue ElastiBody resistance band. It has 8 handles (from A to H), so you can make the exercise harder by using handles that are closer together. This means bringing your feet closer together.
For this exercise:
- Step your right foot into handle H. Pass the band under your left foot and stretch it to grab handle A with your left hand. Stand with your feet shoulder-width apart and parallel.
- Lean your upper body to the right while stretching the band with your left hand. You should feel a stretch along your left side. Use your oblique muscles to straighten up and return to the starting position, then repeat. Once you’ve done all your reps, do the same on the other side. Make sure you always keep your back nice and straight.
- Do 3 sets of 15 reps on each side.
🥗 Flat tummy menu (serves 1)
Well-chosen foods that are easy to digest: here’s our balanced menu of the day!

The cooling gel that leaves the skin on your stomach firmer
- Arctic Algae, Prosveltyl® & Menthol, combined in a formula designed for the stomach and hips
- Sorbet texture: it absorbs faster and makes the fresh sensation last longer
- 🍃 98.3% natural-origin ingredients
BREAKFAST
Made up of: 1 natural yoghurt / 1 tbsp honey / 1 handful of dried fruit / 1 kiwi / 1 freshly squeezed orange juice.
LUNCH
1 grilled veal escalope / 1 portion of peas (about 100 g) / 10 cherry tomatoes. For pudding, 1 apple + 1 handful of almonds.
SNACK
1 cup of tea + 1 piece of fruit of your choice.
DINNER
100 g of sole / 1 carrot purée (2 good-sized carrots will do) / 30 g of peas. For pudding, 1 square of dark chocolate.
If you’d like to enjoy this menu with someone else, just double the portions! 😉
💪 Coach’s tip

If you’d like to step up your workouts, it’s time for a more fun exercise routine with the Cellublue ElastiBody resistance band! Get into exercising with this fitness accessory and adapt your sessions to your own pace!
Girls, if you’re ready to shake up your fitness sessions, this band is for you! It lets you progress in your workouts in a fun way, raise the intensity and work your thighs, abs and glutes. You’ll see: building muscle becomes much more fun with the ElastiBody band! 💪
To find out more about the ElastiBody band and order yours, just click here!
Bonus! Along with the band included in the kit, you’ll get 3 downloadable e-books with targeted exercises. They’re ideal for working your abs, thighs and glutes in depth.

Challenge check-in ✅
Don’t forget to check in for day 3 of the challenge by leaving a comment on our Facebook event page. Just click here!
See you tomorrow, girls!
Frequently asked questions
How can you get a flat tummy in 3 days?
No programme can promise a flat tummy in such a short time. Day 3 of the Flat Tummy Challenge offers a simple routine. It includes an ab session (jackknife crunch and a love handles exercise with a resistance band), a balanced menu for the day and the coach’s tip. The idea is to keep up the pace over the 7 days of the challenge.
Can you lose belly fat in 3 days?
It’s best not to set yourself a goal over such a short period, because every body is different. The challenge focuses on consistency. It combines exercises that work your abs and obliques with meals that are easy to digest. If you have any questions about your health or your diet, ask a doctor or a healthcare professional for advice.
How many reps should you do for today’s ab exercises?
For the jackknife crunch, do 3 sets of 15 reps. For the love handles exercise with the resistance band, do 3 sets of 15 reps on each side, and always keep your back nice and straight. If any movement causes pain, stop and ask a healthcare professional for advice.
What should you eat during the Flat Tummy Challenge?
Today’s menu starts with a breakfast of natural yoghurt, honey, dried fruit, kiwi and freshly squeezed orange juice. Lunch is a grilled veal escalope with peas and cherry tomatoes. For a snack, have a cup of tea and a piece of fruit. Dinner is sole with carrot purée. You’ll find all the details in the Flat tummy menu section.
Related articles
Useful categories: Slimming Program.
To go further, explore the Cellublue shop: our body care products.

The evening treatment with Ginger & Slimsize® for the belly and hips
- Targeted night treatment for belly & hips, to massage in every evening before bed
- Ginger & Slimsize®, with a patented active ingredient at the heart of the formula
- Helps smooth and firm the skin
-26%The cordless massager: 2 900 rotations per minute to stimulate your skin
- A deep mechanical massage: rotations and vibrations, up to 2 900 turns per minute, knead the skin on your thighs, stomach, arms and bottom
- 2 complementary heads: the ball head kneads deep down, then the wave head smooths and tones the surface
- 5 intensity levels on a touchscreen, a blue light, cordless and quiet



