The diets being tested this time include the 5:2, Master Cleanse, the All You Can Eat and the coffee-based regime. There's also a look at virtual gastric band surgery.
The weight-loss regimes road tested this time include the Grapefruit, Apple Cider Vinegar, Skinny Gut, Raw Food and Fast Food diets. And Xand looks into DIY enemas.
The weight loss regimes tested this time include the High-Fat, the Mediterranean, the Cookie and the Paleo, and a diet where a protein solution is fed straight into the tummy.
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.
Café 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.
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 optimize hormones that control his appetite and metabolism.
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.
Diet crashers Emma and Kaye have 10 days to slim down for the races. Emma tries out the baby food diet, consuming up to 14 jars of baby food a day, while Kaye sticks to a strict 70:30 ratio of veg to protein on the omni diet. Meanwhile, shapeshifters Eve and Kate go on six-week dieting plans before their holidays. Eve tries out the bland diet, designed to minimise gut irritation with low-fibre and low-fat foods, while Kate is given the champagne diet and can indulge in one glass of bubbly per day, accompanied by strictly calorie-controlled meals. And life changers Jan and Alexa want to slim down for the fifth anniversary of their tea shop. Jan tries the high-protein, low-carb leptin diet, while Alexa is on the serotonin power diet, which allows comforting carbs to increase the mood-enhancing hormone serotonin. Dr Xand tries out laser lipolysis to get rid of his belly fat and investigates if gastric balloons can lead to weight loss without the risks of surgery.
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.
Xand van Tulleken, dietician Hala El-Shafie and cook Stacie Stewart oversee proceedings as three more pairs road test some of the most popular and talked about diets. AK and Bethany have two weeks to slim down for an evening of speed dating, Gemma and Charlotte want to lose weight for their school reunion in six weeks, and married couple Si and Simon aim to shed the pounds for Manchester Pride in four months' time.
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 dance routine for a Bollywood film. 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.
This time, bus driver John and children's entertainer Mark want to shed the pounds for a fancy getaway to Florida. Kanan and Parul are desperate to get slimmer for Kanan's son's wedding. And Angela and Jacinta plan to shed some pounds for a charity run. Xand also investigates why alcohol is so harmful to our waistlines and analyses how accurately fitness trackers count our calories and log our activity. The featured diets this time are Gwyneth Paltrow's Goop detox diet; the SlimFast diet; a high-fibre regime; a macrobiotic diet allegedly favoured by Madonna and Julia Roberts; some mindful eating; and the NHS weight loss plan.
Caroline and Charmaine have a week to slim down for a spa day, David and John go on six-week plans to lose weight for a friend's wedding, while Karen and Tracey want to get in shape for a summer holiday in three months' time. Plus, Helen finds out how vision affects appetite.
Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. Sade and Becky have two weeks to slim down for a day at the races, Derek and Bruce go on four-week dieting plans ahead of a summer barbecue, and Sam and Fay want to slim down for their annual bus drivers' picnic in four months. Xand also investigates the latest liposuction techniques and finds out if unconscious persuasion can melt away people's fat.
Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. Sandra and Cherise hope to lose a dress size for a 30th birthday party, Dan and Rob from Stoke want to get fit for a charity football match and Pip and Donna have four months to slim down for a muddy obstacle race. Xand also investigates gastric balloon pills and whether he can freeze away his stomach fat.
Xand van Tulleken and Helen Lawal oversee proceedings as three more pairs road test some of the most popular and talked about diets. 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 trim some excess for a black-tie event in four months' time. Xand also investigates investigates what happens when people are hungry and angry, and pits alcoholic drinks against one another to find out which is the worst for calories.
In this one-off special ordinary Brits trial popular diets looking to shape up for a wedding, a pool party and a beach holiday. Also, can you sleep your way to weight loss?
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.
The weight loss regimes tested this time include the faith-based hallelujah diet. And Dr Xand investigates if you can offset office-snacking calories by exercising at work.
Dr Xand investigates whether our hormones can make us fat, and Helen Lawal discovers if it is possible to still burn calories sitting down. Plus, can knitting lead to weight loss?
The diets tested this time include going raw and vegan, drinking meal-replacement shakes, and eating a pizza every day! Plus, Dr Xand investigates bottled waters and goes Keto.
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.
Two mates try the coffee and chocolate diets, a father and son give the Mexican and Korean K-pop diets a go, and two girlfriends try the macro and smart app diets. Plus: biohacking and gym bikes.
