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Do protein supplements really help build a buff body? Can consuming grapefruit while on certain medications be dangerous? And we lift the lid on peanut butter's stupendous shelf life.

Scarlette Douglas shows Sam and Shirley five properties with incredible views on the beautiful Caribbean island of St Lucia for their budget of £400,000. Which one steals their hearts.

A couple launch a luxury B&B in France. In Murcia, a microbrewery aims to crack the Spanish lager market. And in southwest France, a couple start a business involving snails.

Henry Cole and Simon O'Brien visit Surrey and Middlesex, where Henry restores a pair of racing go-karts, and Simon repurposes an old butcher's block into a coffee table.

DJ Dom - aka Tracksuit Dom - hosts his first-ever dinner party, with a menu inspired by the 'Madchester' music scene, but has to call on a celebrity pal to bail him out.

After Dom's disastrous dinner, trainee barrister Sasha hopes to raise the bar with a Chinese-Pakistani fusion menu - served on plastic plates.

Nurse Katherine makes 'quick fix' food, including a chorizo and chickpea main, and pulls out all the stops for her entertainment with a brass band in her back garden.

Redcoat-turned-barber Danny hosts a Bulgarian evening in homage to his wife and gets emotional in front of his guests.

Glam goth and wannabe vampire Maria plans an East-meets-West menu and devilish dancing. But Tracksuit Dom serves the biggest surprise when he turns up in a suit and tie.

Harri and Claire welcome their rivals to the Vale of Berkeley Guesthouse in Gloucestershire, where they line up some bird-watching bingo for their guests.

Justin and Charlie host at the Artist Residence in Penzance. Most of their guests like the quirky, art-filled rooms, but a hair-raising shower dampens some spirits.

At Alec and Craig's award-winning Edenfield Guesthouse in Blackpool, Craig unleashes his cabaret-star alter-ego, Cybil Du Vaux, on his unsuspecting guests.

Stacey and Spencer host at The New Inn at Portland in Dorset. There's sandcastle building, water fights and breakfast hampers, but Claire accuses Stacey of alienating her guests.

It's the final day of the competition and the B&Bers meet one last time to see how much they've been paid. After criticisms are aired and shortcomings explained, the winner is announced.

Fuzz Townshend and Tim Shaw head to Kent to fix up a rusty 1965 Ford Mustang for a surprise reveal in front of 10,000 people at London's O2 Arena.

Fuzz Townshend and Tim Shaw head to Essex to restore a tatty old JCB for carpenter Kev. But rejigging the digger is a bigger job than they realised..

Can Colin and Adele overcome contractor issues and financial ruin to build their eye-popping curved glass home in south Manchester.

John has been in a cycling accident. He went over his handlebars and was unconscious for 10 minutes. Sydney has severe chest pains. Alan has fallen and fractured his elbow.

A teenager crashes his moped and needs multiple surgeries to rebuild his leg. Danilo finally heads home after life-saving treatment and pays tribute to 'the heroes' who saved him.