What do you eat? One of my favorite dishes on expedition butter and bacon.

What are you talking about?

Food's great. Low carb, high protein.

High calorie foods are bad for my health.

And their higher rates of obesity, diabetes and heart disease are the result.

Rich foods don't agree with my health.

27 times 3,000 calculated equals 81,000 calculated slash 550 calories equals 147.

Rich foods don't agree with my health.

Now, there's no mystery in how you lose weight you either burn more calories by exercise or you eat fewer calories.

Just out of the laboratory this morning.

But this is now this strange concoction of high calories.

We're very hungry for fossil fuels too.

It's kind of like a potato.

The other way is to change the type of food.

and food into people.

Wonder if it's true that drumming burns the most calories...

Japanese sweets are lower in calories than Western sweets.

Now, that is roughly 150 Big Macs.

The calorie is an exact measure of the energy in food.

If you're a healthy person, you might have to work really hard to go fast.

And the composition of chestnut is almost identical, actually, to that of rice. OK.

And those are two types of kale.

like this little FitBit.

That's physical activity.

This behavior is energy efficient in an environment where calories can be hard to come by.

Fast food today makes up a third of everything we're eating.

And even in terms of calories, it is very good.

They didn't get diabetes they didn't get heart disease they lived 20 percent longer they got the health benefits of caloric restriction without the restriction.

So, when you eat less fat, you eat fewer calories without having to eat less food.

One kilogram of grasshoppers has the same amount of calories as 10 hot dogs, or six Big Macs.

The myth that you hear about is,

And fat has nine calories per gram, whereas protein and carbs only have four.

So whenever you want to look great and competent, reduce your stress or improve your marriage, or feel as if you just had a whole stack of high quality chocolate without incurring the caloric cost, or as if you found 25 grand in a pocket of an old jacket you hadn't worn for ages, or whenever you want to tap into a superpower that will help you and everyone around you

And they have high expectations.

And we get to talk about ratios and proportions, and calories and cost production.

For every calorie of food that we consume here in Britain today, 10 calories are taken to produce it.

Now most people would answer grilled, and it's true that grilled chicken does contain less fat and fewer calories.

They decide to sell their house.

A piano is expensive, but a car is more expensive.

Its height going to be f of x,1.

My cholesterol is high.

My father is tall.

Boy, you sure know how to pick 'em.

(Laughter)

We use in the industrial world about ten calories of fossil fuel energy for every calorie of food we produce.