Several 90 Day Fiancé stars have revealed their weight-loss transformations over the last few months, but many viewers are having a difficult time believing some of the cast members' methods. Quite a few 90 Day Fiancé cast members have turned their energy inward and have focused on obtaining their dream body. While some cast members admit to surgeries, diet, exercise, or slimming teas, others are a little more tight-lipped about their weight-loss journeys.

Angela Deem is a controversial co-star who lost over 100 pounds in the last year. However, she's been vocal about her process with surgeries for her drastic weight-loss and appearance changes. Tiffany Franco is another co-star who has lost over 80 pounds in the last year. Her success can also be attributed to weight-loss surgery.

Related: 90 Day Fiancé: Times When Molly Hopkins Flaunted Her Weight Loss

Jorge Nava also lost a significant amount of weight. While weight-loss surgery in prison is unlikely, the dramatic change still had fans wondering just how 90 Day Fiancé's Jorge lost the weight so quickly. However, there are a few co-stars who have lost significant weight in a short amount of time, but their claims of diet and exercise don't appear truthful, which results in fans theorizing that more extreme methods may have occurred off screen.

David Toborowsky

Split image of 90 Day Fiancé star David Toborowsky before and after weight

David Toborowsky blew viewers away with his new, sleek physique. Compared to the shocking before and after pictures, it's clear he lost most of the weight quickly, but he characterized his weight loss journey as a "slow process." The significant difference in weight has alarmed many franchise fans, but they're also curious to learn more. David is known for his love of food, and with many franchise stars turning to gastric surgeries or liposuction, it's difficult to not make assumptions.

Molly Hopkins

Molly Hopkins 90 Day Fiancé

Molly Hopkins is another star who has indulged in a weight-loss journey that has viewers questioning her methods. 90 Day Fiancé's Molly started her transformation in 2021, but the drastic results in a short time frame have some fans uneasy. Since she's started her journey, she's lost over 40 pounds and attributed her success to weight-loss products that she promotes on Instagram. Not only do many fans disbelieve that products are the reason for her impressive weight loss, they believe Molly might've indulged in other methods as well.

Natalie Mordovtseva

Split image showing Natalie alone and with Mike in 90 Day Fiancé.

Natalie Mordovtseva has faced a lot of scrutiny from viewers due to her Photoshop fails. In June 2021, she revealed a new coaching program and joined an intermittent fasting Facebook group. She attributed her weight loss success to the new program and the keto diet. However, earlier that year, Natalie admitted to getting liposuction and recommended cryotherapy to her fans. 90 Day Fiancé's Natalie had a difficult time admitting her genuine methods and allegedly altered her pictures, which caused fans to theorize it's not as simple as dieting and exercising like she claimed.

Related: 90 Day Fiancé: David Toborowsky's Weight Loss Journey In Pictures

In the end, it's important to be healthy and happy. Although viewers often scrutinize the techniques some 90 Day Fiancé stars choose, it's because they also want to make sure the cast members are safe in their weight-loss adventures. Losing a lot of weight in a short time frame is not as healthy as one would hope. Regardless of their approaches, fans wish the best for these 90 Day Fiancé co-stars on their journeys to a healthier body.

Next: How 90 Day Fiancé's Natalie's Weight Loss Journey Keeps Her Relevant