Everyone knows that losing weight comes with plenty of challenges. If you begin a workout routine, staying committed and eating healthy – especially if people around you live a different lifestyle – take an incredible amount of positive thinking willpower. Out of all the challenges one faces in life, losing weight might just be the toughest. You have to turn down junk food constantly, whether you’re in a grocery store or watching ads on TV. Not only that, but you have to hit the gym even when you don’t feel like it in order to get results.

There’s no doubt about it – weight loss takes so much mental and physical stamina, and if you have a lot of weight to lose, the journey becomes even longer. We want to showcase a few people who stuck with it even when they felt like giving up – you may not even recognize them in their after picture!

Here are 15 weight loss transformations that don’t even look like the same person:

1. This woman lost about 50 pounds between the before and after picture!

2. Over 100 pounds of weight loss happened between the first and second picture. Way to go Ashley!

3. This woman is down 108 pounds now!

4. Wow, this really doesn’t look like the same person; what a positive transformation!

5. Carsen had a weight loss of 140 pounds!

“In the left picture I had high blood pressure, I was depressed, unhappy, on blood pressure meds, and didn’t want to go do anything simply because I didn’t like the way I looked or felt about myself. I became a hermit and that’s not who I was AT ALL. I had to get out of this funk. I’m happy to say that in the right picture I’m no longer on blood pressure meds, I’m quite happy, I actually like going out and doing things. Not only physically do I feel good, but mentally!”

6. This man went from a size 56 to 38 pants!

7. “When you want something bad enough….. you work hard to achieve it, not make excuses. Living proof that it’s possible. 309 to 157.”

8. Ethan lost 100 pounds in 10 months – talk about inspiring weight loss stories!

9. Down 88 pounds and counting!

10. We have no words except AMAZING!

11. There’s almost a 90 pound difference between these photos.

12. Hard work pays off, as you can see in this weight loss transformation!

13. This woman lost over 150 pounds so far!

14. Definitely doesn’t look like the same guy in the second photo!

15. You go girl!

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