Blake Lively's Diet For Her Post-Baby Body Cuts Out All Soy And Gluten

Blake Lively is pregnant with her second child and she's no stranger to eating on a strict diet to drop baby weight fast.

She got back in shape for shark flick "The Shallows," where she mostly ran around in a bikini, just eight months after having her daughter, James.

We can guess she's gearing up to hop back on the diet bandwagon again after having her second kid.

You're probably thinking that losing baby weight that fast must have taken a team of scientists and involved a master plan that accounted for every hour of her day.

Nope. Her diet rules were simply no gluten and no soy.

She told PEOPLE,

Once you remove soy, you realize you're eating no processed foods. So that's basically what I did. No processed foods and then working out.

Lively didn't cut out everything -- b Because she's a mom, not a competing bodybuilder. She says,

I was still able to have sugar and all of those things. It's all in moderation. You just have a balance of protein, carbs and vegetables. And it wasn't the worst. Like, I was eating rice and sushi.

Her trainers were good about giving her balanced meals that wouldn't leave her famished or too stuffed, especially with her steady workout schedule on top of dieting.

Even though she was allowed to eat sushi, it was hard to stick to. If you think about it, cutting soy means you're restricting yourself from a ton of food. It's incredibly hard to avoid things that have soy. Her struggle was real. She explained,

[It] seems like, 'Oh, that's really easy to cut that out,' but then you realize, there's soy in everything. Like, everything you eat, there is soy in it. Even if it's healthy, Whole Foods-organic stuff, there's always soy in it.

Lively explains that she was never in amazing shape to begin with (OK, girl) but wanted her body back after having James. It was never about being ashamed of anything. Either way, she's happy with the fact that her body produced another human. So yeah, it's going to look different.

We've got to hand it to you, Blake, your dedication is inspiring. Cutting out soy sounds like the pits.

Citations: Blake Lively Reveals New Secrets About Her Bikini Diet for The Shallows: 'No Gluten and No Soy' (PEOPLE)