Popping Pills! Secret Reason Behind Teen Mom Jenelle Evans' Shocking Slimdown Revealed

It's no secret that Jenelle Evans has been under a lot of pressure since splitting with her baby daddy Nathan Griffith and getting arrested for assault. But the Teen Mom 2 star has been directing her stress into a new weight loss routine — and RadarOnline.com has learned that includes taking weight loss pills!

According to a source, Evans has been using Shredz – a series of weight loss and toning supplements.

"It's a multivitamin, creatine, fat burning supplement," the source tells Radar. "Creatine gives you energy."

The source says that Evans is also taking 1.M.R Vortex, which is advertised as a powder you take before working out for an energy boost.

On top of that, "Jenelle works out two to three days a week in the gym and does two muscle groups a day," the source says.

"She has cut out all soda and is drinking strictly water or juice occasionally," the source says.

"Jenelle has always been into health and fitness," the source explains...

Growing up, "Jenelle has been actively involved in sports and cheerleading," the source says.

Now, Evans is taking the 1.M.R. Vortex before she works out, taking vitamins along with the Shredz supplements, and eating a low-carb diet.

"She has been doing this for about a year now," the source says.

And it looks like her aggressive fitness and diet routine are working for her. Evans has never looked better!