How to Lose Weight Well - Episode Guide

Diets tested this week include the Master Cleanse and the 5:2.

Diets tested this week include the grapefruit diet and the apple cider vinegar diet.

Diets tried out this week include the High-Fat diet and the Mediterranean diet.

Dr Xand van Tulleken and dietician Hala El-Shafie ask ordinary Brits to road test some of the most popular and talked about diets out there; and to then give viewers the lowdown on how the diets worked for them. CafÚ cook Stacie Stewart helps the volunteers to turn their diets into delicious dishes. The second series begins with Emilie and Harriet, who have two weeks to slim down for a photo shoot. Cousins Natasha and Chiquita go on a six week diet for Natasha's wedding. And brothers Gary and Wayne want to slim down for a darts competition due in four months. Xand also investigates how exposure to extreme temperatures can affect weight loss and finds out if chewing for longer can help the calorie count.

Dr Xand van Tulleken and dietician Hala El-Shafie ask ordinary Brits to road test some of the most popular and talked about diets out there, and to then give viewers the lowdown on how the diets worked for them. CafÚ cook Stacie Stewart helps the volunteers to turn their diets into delicious dishes. This time, Daria and Emma have seven days to slim down for a birthday bash; bridesmaids Emma and Elisa go on six week dieting plans for a forthcoming wedding; and entrepreneurs Dom and Adam want to slim down for a corporate summer party in four months. To find out how fasting affects body and mind, Xand goes on an extreme 'water-only' fast, and investigates if so called 'zero calorie' and 'negative calorie' foods really exist.

Dr Xand van Tulleken and dietician Hala El-Shafie ask ordinary Brits to road test some of the most popular and talked about diets on the market, while café cook Stacie Stewart helps the volunteers turn their diets into delicious dishes. This week, Stefanie and Jade from Harrow have just 10 days to slim down before the launch of their clothing label. Sugar fiend Stefanie goes cold turkey on the No Sugar Diet. Jade test drives the Low Fat Diet, filling up on lean protein and fibre. Fast food junkies Matt from Redditch and Robb from the Wirral battle the bulge before a university reunion in six weeks' time. Matt is on the Warrior Diet, eating like an ancient soldier. Rob is given the Sleeping Beauty Diet, sleeping more to allow his body to optimise hormones that control his appetite and metabolism. And Vicki and Kerry from Chesterfield want to get fighting fit for a mud race in four months' time.

This time the diet crashers are Amber and Roisin, with just ten days to slim down for Amber's graduation day. Amber tries the mono meal diet while Roisin is on the Dukan diet of lean protein, oat bran and water. The shapeshifters are Gerry and Leighton, on six week diet plans for Leighton's wedding, with Gerry testing the abs diet and Leighton the South Beach. The life changers are Janet and Carol, with four months to test out the DNA diet and the apples and pears weight loss regime. There's also a look at vitamin drips and placenta pills.

A brand new series of the show in which Dr Xand van Tulleken and dietician Hala El-Shafie help members of the public tackle some of the most hyped weight-loss regimes on the scene. The dieters are divided into three time frames: Crashers try short term diets; Shape Shifters take on a six week programme; while Life Changers sign-on for four month dieting plans. CafÚ cook Stacie Stewart helps the volunteers to turn their diets into delicious dishes. In the first episode of the third series, Becky and Sheena from Devon have only two weeks to shape up for Sheena's hot tub party. Sheena tries the punishing Copenhagen diet, an ultra weight loss regime, while Becky tries the Special K challenge, mixing cereals and high fibre.

This week AK and Bethany have two weeks to slim down for an evening of speed dating; Gemma and Charlotte want to trim down for their school reunion in six weeks' time; and married couple Si and Simon want to shed the pounds for Manchester Pride in four months' time. Xand also investigates whether fat-melting injections are the easiest alternative to dieting and pushes his body to the limit to find out if our overnight weight fluctuations are just down to water.

This time, supermarket employee Rebecca and charity worker Alisha from London want to ditch their bikini bulges for a family holiday abroad. Gary and Connor want to look svelte for Gary's upcoming graduation, plus Elaine and Sue from Essex want to trim down for a work reunion in four months' time. Xand also investigates electro muscle stimulation for weight loss and tries to get rid of dangerous visceral fat clinging onto his organs.

This time, gym buddies Lucy and Sue want to get bikini ready for a spa day in two weeks. Best friends Fi and Sarah shape up for Sarah's birthday party. And part time actors Bharat and Atul purge the pounds for a Bollywood film dance routine. The diets tested this time are the carb lovers diet; the low carb diet; the wild diet; the blood sugar diet; and the highly-regarded dash diet. Xand also road tests the latest diet gadgets and finds out if our gut microbiome may hold the key to weight loss.

The diets being tested this time include Gwyneth Paltrow's Goop detox and the NHS weight loss plan. And a look at fitness gadgets and why alcohol is so harmful to our waistlines.

Dr Xand van Tulleken and Dr. Helen Lawal ask members of the public to road test the most hyped diets on the market. This time, Sade and Becky have two weeks to slim down for Lady's Day at the races. Work colleagues Derek and Bruce go on four-week dieting plans ahead of a summer barbecue. Bus drivers Sam and Fay want to slim down for their annual bus drivers picnic in four months' time. The diets tested include the charcoal diet - which replaces one meal per day with charcoal drinks; the breakfast diet, with cake for breakfast; the McDonalds diet; and the super foods diet. Xand also investigates the latest liposuction techniques and finds out if unconscious persuasion can melt away our fat.

In this episode, Jonno and Alfie have two weeks to slim down for a family barbecue, Sonal and Surekha go on six-week dieting plans to lose weight for an engagement party, and twins Michelle and Mandi want to slim down for a black tie event in four months' time. Xand van Tulleken investigates 'Hanger' - what happens when you're hungry and angry - and pits alcoholic drinks against each other to find out which is the worst for calories.

Doctors Xand van Tulleken and Helen Lawal oversee proceedings as more people attempt some of the most popular and talked about diets on the market today, while cook Stacie Stewart gives advice about recipes. In the opening edition, Laura and Gellner have two weeks to slim down for a spa day, sisters Aishia and Karlette go on six-week diets for their joint birthday party, and truckers Adain and Gerry hope to lose weight for a hot-tub party in four months' time.

Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. Drag queens Jordan and Thomas have one week to drop a dress size ahead of their next performance, best friends Earl and Vince go on six-week faith-based diets to slim down before a forthcoming church celebration, and mums Maria and Jules want to lose weight for a kayaking trip in three months. Xand also investigates whether infrared can make people lighter and if it is possible to offset snacks by exercising at work.

Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. Newlyweds Steven and Eamonn have eight days to trim down ahead of their holiday, friends Valetta and Paulette go on six-week diets to slim before their friend's wedding in the sun, and drinking buddies Sian and Keighlee want to lose weight for a girls' holiday in four months' time. Xand investigates whether people's hormones can make them fat, and Helen examines whether knitting can lead to weight loss.

Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. Teaching assistants Sheila and Syrika have a week to trim down ahead of their end-of-term party, partners Greg and Nath go on six-week diets to slim down before Lincoln Pride and Becci and Cassie want to lose weight for a friend's wedding in three months. Xand asks if fizzy water can really make people gain weight and also goes on a keto diet.

Dr Xand van Tulleken and Dr Helen Lawal challenge three pairs of friends to try out the latest popular diets, while cook Stacie Stewart demonstrates some healthy recipes. Sophie and Zoe give the Citrus Diet and the Sexy Pineapple Diet a road test, Barbara and Denise spend six weeks on the Summer Salad Diet and the Summer Sandwich Diet ahead of their holiday in Ibiza, and Theo and Ervis take on the Greek Island Longevity Diet and the South American Diet so they can lose weight in time for a pool party.

Doctors Helen Lawal and Javid Abdelmoneim help people try out the most popular diets on the market, with participants being put on a variety of regimens. Sisters Lesley and Debra from Essex road-test diets followed by celebrities Adele and Rebel Wilson, while friends Temi and Bose try out intermittent fasting, and drinking pals Maurice and Mick want to lose weight before attempting a Three Peaks walk in their native Yorkshire.