that fruit is good for us.

So, it makes sense

more fruit would be even better, right?

But what if that was all we ate?

Believe it or not,

eating only fruit is a thing.

It's known as

Apple co-founder

Steve Jobs was a fruitarian.

He believed eating a diet

primarily composed of fruit

would cleanse his body of harmful fluids.

Most fruit-only diets are actually

"mostly fruit" diets

as they usually include

some nuts,

seeds,

and vegetables.

But for this challenge,

we're going full-on "only fruit."

So, let's get started.

The new diet starts well.

You enjoy all kinds of fruit

so there's no problem

finding variety.

But you should be careful

with your choices.

A lot of fruit is very high in sugar.

So you may want to limit

the amount of lychee,

mango,

cherries,

and grapes you eat.

Bananas are also very high in sugar

but they're a good source of potassium,

so enjoy them in moderation.

Blueberries are high in

fiber, antioxidants,

and vitamins C and K, making them

an excellent choice.

Watermelon will keep you hydrated and

provide a wide variety of nutrients.

And apples will give you

much-needed fiber

and antioxidants.

You've now settled into a regular diet,

and things seem to be going well.

But that wasn't the case for

actor Ashton Kutcher.

While preparing for his movie role

as Steve Jobs,

he tried the all-fruit diet.

One month in and he was rushed

to the hospital in severe pain.

Thankfully,

you haven't had any problems to date.

As much as you enjoy

the fruit you've been eating,

you've started to crave other things,

particularly high carb foods

like bread,

potatoes,

and pasta.

And you've noticed

your visits to the restroom

have become more frequent

as all that fiber works

its way through your body.

Halfway through the year,

and although you've become used to

your new diet,

those cravings are getting worse.

You find that you're getting tired quickly

and are often lightheaded and dizzy.

You're malnourished

and you aren't getting

the nutrients you need.

To combat this,

you need to supplement your diet

with vitamins and protein powders.

Be sure to drink lots of water

to keep hydrated.

It will also help digest all that sugar.

Chances are that by this point

you've had to deal with

some adverse health effects.

If not, consider yourself lucky.

But be ready.

They're coming soon.

Your digestive system is a mess.

All that fiber is wreaking havoc

with your innards.

You feel bloated and have cramps.

You often feel sick and tired

as your blood sugar levels are

out of whack.

And you've lost a lot of weight

which may have been your goal

in the first place.

However, it's not just fat you're losing.

You're not getting the nutrients

you need to maintain your muscles.

All this fruit is overworking

your pancreas, so it's beginning to fail.

Although there is no evidence

that his fruitarian diet played any role,

Steve Jobs died of pancreatic cancer.

If you've stuck to a strict diet

of only fruit for the last 12 months,

you are either in the hospital

or in very serious condition

or you're dead.

If you are still breathing,

you would be deficient

in many essential vitamins

and minerals.

As good as fruit is for you,

it doesn't provide

everything your body needs.

It lacks complete proteins

and amino acids needed

to build muscles.

Those people who do follow

a fruitarian diet

typically follow diets that are

no more than 90% fruit.

Although it doesn't seem like much,

that 10% of veggies and carbs

makes all the difference.

Moderation and balance are key.

Eating a diet rich in fruits and

vegetables can help reduce

the risk of many

leading causes of illness,

including heart disease,

diabetes,

and some cancers.

But it's also important

not to ignore the other food groups.

Now that you've survived

12 months of only fruit,

you're probably looking forward to

enjoying something

other than an apple.

We've got what you need.

How about Mountain Dew?

That's it.

You can only drink Mountain Dew.

That's your next challenge

on another episode of