The Bachelor’s Catherine Lowe Wants to Lose 10-15 More Lbs. of Baby Weight: ‘I’m Ready’

Eight months after her second son was born, Catherine Lowe is ready to lose the remainder of her baby weight — and her husband Sean is joining her on a new wellness kick!

The couple, who met on The Bachelor in 2013, are new brand ambassadors for Nutrisystem, a food delivery program that promotes a nutritious and health-conscious way of life.

“I had a second baby and I’m ready to turn it up,” Catherine, 32, tells PEOPLE, explaining that she gained about 40 lbs. before welcoming Isaiah in May. (Son Samuel is 2). “Sean is being really supportive and we’re doing a good purge together.”

Sean, 35, admits, “I don’t have a lot of weight to lose,” but says the Nutrisystem plan is helping him make better decisions when it comes to what to eat.

“Eating clean has been the biggest issue for me,” he says. “It’s so easy to order pizza. And I definitely have a sweet tooth. I’m trying to curb those cravings and drop a little weight so I can get, to use a meathead term, shredded. And there’s something to be said about accountability. It’s nice that Catherine and I are eating the same things together.”

For her part, Catherine says she hopes to lose 10-15 lbs. and appreciates the meal plan’s “grab and go” options. Says the busy mom of two: “I often forget to eat, and when I remember, I don’t make the best choices. It’s not healthy. So I want to make be more aware.”

And despite the challenges, Catherine is optimistic about her body goals. “Losing the weight after the second baby is definitely harder,” she says. “But I’m ready to push myself!”