- [Narrator] Gadoosh.
- Oh, you're terrible!
Don't eat that food!
- Who are you?
What are you doing in our house?
- I'm from the future.
I'm here to warn you, don't eat that food.
- Why not?
- The eggs, they're full of cholesterol.
- Cholesterol it,
it clogs up your arteries.
Eating even just one egg can dramatically
increase your chance of heart attack.
Don't eat eggs!
- Oh, my God.
- You're welcome.
- Well I guess I better take those eggs.
- [Woman] You're back!
- Yeah, we were wrong about the eggs.
- Well it turns out there's two types of cholesterol.
There's good cholesterol and bad cholesterol,
and eggs actually have both.
So you can eat eggs but just don't eat the egg yolks.
So stick with the egg whites.
- Yes, thank you.
We were wrong about the eggs.
Yeah, okay so it turns out that the amount of cholesterol
in a food doesn't actually affect how much cholesterol
ends up in your blood.
The eggs are probably fine.
In fact we sort of don't even know what...
But the steak!
You can't eat the steak!
- Why not?
- Turns out that red meat increases
your chance of heart attack.
You have to cut out red meat.
So no steak!
- Thank you.
- What, no.
No steak, Mister.
We were wrong about the steak!
It's the toast.
Man was not meant to eat bread.
- What do you mean man was not meant to eat bread?
- Well if you think about it,
human beings should really only be eating
what our paleolithic ancestors ate.
So, therefore, no bread, no toast.
- How do you know what our paleolithic ancestors ate?
- Well, we just have to guess.
Right, I mean we don't have any way of knowing wha-
Okay, went back to the paleolithic.
I don't know what we were thinking.
If anything we should all be eating a lot more bread.
So I guess just um,
ignore everything I've said and exercise.
- Exercise, okay.
You guys could probably use it.
You've been sitting just sitting here for the last 35 years.
- It's been five minutes.
Turns out it's genetic.
Doesn't matter whether you exercise or what you eat.
I'm sorry I ruined your meal.
- I need 10 minutes.
- Do you want some eggs?
- I'd love some.