so we challenged four people to change their diet for a month to see what happens when you go gluten-free.

I've heard that going gluten-free helps you get more energetic, which is definitely something I'm interested in because I'm always tired.

I wanna, kinda, get back onto a healthy eating schedule and really pay more attention to what I'm putting in my body.

I'm excited to just find, like, good gluten-free cake.

The reason I wanna go gluten-free is because my girlfriend was diagnosed with celiac disease.

(Celiac disease - An autoimmune reaction to gluten that damages the small intestine)

And I'm hoping that by myself going gluten-free, I can make it a little bit easier for her.

(Nutritionist consultation)

What are some changes that I should expect when going gluten-free?

It depends on how sensitive your body is to gluten, but some of the great benefits of being gluten-free are increased energy.

A lot of people who go on a gluten-free diet end up having more energy just because the energy in their body isn't being used for digestion.

I'm nervous that I'm not gonna have a lot to eat.

Think about it this way: Our favorite foods become our favorite foods because we eat them often.

The good news for you is you're not giving up your five favorite.

You're just setting it aside and saying, "Oh, do I have 20 other favorites that I didn't even know about?"

- Exciting. Yeah. - So you come out of the diet, and you've got 25 favorites.

(One week in)

I was just looking at my favorite fake bacon that I eat all the time.

Modern corn starch, wheat, gluten!

I had no idea there was gluten in this.

I might've eaten some since I started the diet.

I definitely have.

At work, we had free cupcake day, so after I, like, pouted about that quietly to myself, I suddenly found out there was a gluten-free option.

There's gluten-free options of a lot of stuff, but there's just one gluten-free option.

I've found it's made my life about 60% more annoying.

It's Friday at BuzzFeed.

A ton of free doughnuts right here, and I can't eat them because I'm gluten-free this month.

Physically, I feel exactly the same.

I do not feel more energetic.

I wouldn't say I feel like I have more energy.

You know, I actually get up feeling energized and ready to, kind of, get my day going.

In one week, I've lost about six and a half pounds already.

(Halfway point)

I'm here to turn things around and gonna try some gluten-free pizza tonight.

It's like pizza made on, um, too-thick tortilla, and they're sweet, for some reason.

It's not a substitute for normal pizza.

Better than I thought.

I have a feeling that is going to be the standard review for gluten-free food.

It kinda tastes like pizza minus bread.

Like, I can't taste the crust at all.

So, I can tell that my body's no longer used to eating gluten, but I don't know if I'm losing a lot of weight or, like, feeling amazingly better.

I haven't seen my energy level change; I've seen my anger and frustration level change.

Wow.

What an amazing snack.

It's been pretty fantastic.

I've just found myself, like, walking a lot more, you know, like, not feeling like I need to take a nap in the middle of the day.

So, I'm at my friend's engagement, still doing gluten-free, so, you can see my entire plate is pretty much empty besides lentils and rice.

It's one of those things that I feel like I could continue doing even after this is over.

(Last day)

My goal was to just help my girlfriend get used to celiac disease, and she hasn't had gluten in maybe three or four months, which is huge for her.

So, that worked out really well.

Nutritionists are really good at making gluten-free diets sound fun when they're actually awful.

It was too big of an inconvenience.

I don't think I really feel any different at all.

There's gluten in weird things that you wouldn't expect.

Like, I realized sort of halfway through that my face lotion had gluten in it.

Now I've found that, you know, I don't really feel bogged down by the stuff I've eaten from the previous day.

Even just the breakfast I'm having, it's a lot lighter.

I just feel like, uh, you know, I've actually got energy to get through the day.

You lost five pounds.

Lost five pounds, all right!

I lost five pounds?

I don't have a lot of body fat; I'm not sure if I can afford to lose five pounds.

Three pounds of body fat.

Three pounds of body fat?

Oh, xxxx!

That's cool.

I cannot wait to eat gluten again.

Internet, do you know this?

Do you know how good pizza is?

It's so good.

It's so good.

It was worth it just for this plate of a cupcake and a pizza.

This is everything I could've asked for, and it just made it that much better after not having it for a month.