Hello I'm Sheila Dylan and welcome to this BBC download of the Food Program.

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BBC.co. UK slash Radio 4. And now enjoy the podcast.

God I thought fat was just fat but in actual fact fat is probably the most misunderstood ingredient

on the planet. Tipperary butcher Pat Wheelen and never more misunderstood than now.

For decades we've been finger wagged into giving up butter, lard, dripping and goose fat and

living the low-fat life using healthy veg and seed oils.

But scientists have been looking again at the findings that started us on this low-fat kick and doing new research.

What they've found is what we've been reporting on this program for decades.

Saturated fats are actually unlikely

to be diet demons. Though while we're grasping that change in policy, a whole new mix of oils and fats are popping up on market shelves,

avocado, chia, argon, a whole mysterious collection.

So what does it all mean and what should we be using in our kitchens

for maximum pleasure as well as good health? Well every week in the guardian

Felicity cloak works out the perfect way to make an astoundingly wide

range of recipes from kale crisps to custard tart to peanut butter. She uses a lot

of different fats and oils and she came to my kitchen a few days ago to do some fat-based cooking, testing and talking.

And Flisti, I thought I'd drag out from my cupboards all that I'd got.

No.

And I can't say that there are some of these I use very often, as you can see, I haven't even

opened the good oil hemp. I think it was a hippie moment I think my brother gave it to me

...