Updated: 04/18/2017 - Site operated by Leptigen
By Summer Banks Mar 24, 2017

The Cambridge Diet is a weight-loss plan I will never forget. We took an in-depth look at the ingredients, side effects, and clinical evidence. Furthermore, we read hundreds of testimonials to get their side of things. Lastly, we summarized and condensed all the data to give you the bottom line.

The Cambridge Diet Readers: Click here to find out why we're giving away samples of our product, Leptigen.

What is The Cambridge Diet?

First off, The Cambridge Diet started in the UK, but has been in the United States since 1979. This weight-loss plan involves six different “flexible” programs to suit all women and men. Calorie restriction is a major aspect and intake ranges from 440-1,500 per day. Prepared foods such as nutrition bars, soups, shakes and super oats are also consumed. Furthermore, a consultant gives you one-on-one support to help you with your journey.

The Cambridge Diet dates back 30 years and is advertised as being flexible enough for any lifestyle. A “weight plan wheel” is provided to help you as a step-by-step guide and the healthy meal-replacement foods are certainly convenient, but read on…

High Price – “How Much is The Cambridge Diet?”

The first concern was the cost of The Cambridge Diet. “This eating plan costs $71.26 per week, which is $285.04 per month,” said our Research Editor. “This is simply not affordable for everyone.”

“Way too costly for me,” said one dieter.

Another customer stated, “Who can afford this?”

Some mentioned the high price of The Cambridge Diet, but others justified the cost.

“Cost is offset by the fact that I don’t buy coffees or snacks anymore,” commented a customer.

Calorie Restrictions – “How Many Calories Per Day?”

According to several reviews, there’s an issue with the amount of calories consumed on The Cambridge Diet. We found that this eating plan is often referred to as a very low calorie diet. Stage one only allows you to eat 200 calories per day. You won’t see an increase until stage two, and it only jumps to 800 calories. In fact, one said, “Only 500 calories today, and I’m STARVING!”

Another user offers, “I am on day 5 and this is the worst day of all. I am feeling very hungry and have stuck to the 3 shakes a day with just water so can’t understand why? I thought by now I would be passed the hunger stage.”

Low caloric intake is an issue for some, but we found dieters benefiting from The Cambridge Diet.

“Lots of people slate the diet by saying not enough calories however all I can say is I feel 10 times better now,” said a dieter.

“The diet has 7 steps to prepare you for long term good eating habit i.e. eat with balance,” commented another.

Our research shows a connection between calorie restrictions and long-term success. There’s an issue if dieters don’t eat the right amount of calories while following The Cambridge Diet.

The Science – “Clinical Support?”

The Cambridge Diet has been around for decades and claims to encourage weight-loss. We noticed several dieter testimonials backing this claim, but we looked for research showing a connection. There’s research relating to very low calorie diets such as this eating plan. The consensus is when obese individuals follow this type of eating plan, there’s a chance they’ll lose weight. On the other side of things, research also shows the potential negative of eating such a low amount of calories per day does to the body.

The Bottom Line – Does The Cambridge Diet Work?

So, what are we shouting from the rooftops about this one? It’s great to see that The Cambridge Diet has been around for many years and there are several plans available to suit different individuals. However, we have reservations about it because research supporting the claims relates to obese individuals. Also, we are concerned about the cost and calorie restrictions.

Those who want to slim down, we suggest going with an affordable supplement containing ingredients supported by clinical studies.

Among the best products we’ve seen this year is our supplement called Leptigen. It contains a proprietary formula of four ingredients. All clinically-tested with results often published in journals such as Obesity and the Journal of Medicine.

Also, we’re so confident that you’ll love our supplement that we’re offering a Special Trial Offer, which is a good sign.

Previous The Cambridge Diet Review (Updated June 26, 2014):

What You Should Know

The Cambridge Diet is a liquid-based diet popularized in the 1980's in the United Kingdom, originally intended for morbidly obese patients. Based on the VLCD diet, otherwise known as the "Very Low Calorie Diet", the Cambridge Diet combines low calorie shakes, soups, and meal replacement bars in their complete diet program. Most of the dieter's calories are obtained through liquid supplements, and the diet is continued until the person meets his or her weight loss goal. During the weight loss period patients eat between 400 to 800 calories per day. In the United Kingdom, you need to meet with a Cambridge Diet counselor before starting the program. The Cambridge Diet is begun with a counselor, who will determine if this is an appropriate diet for you. From there, you will need to purchase meal replacement shakes and bars, which usually range between $13.99 to around $40.00 per package. There are no free samples or money-back guarantees, but you can discontinue the program at any time. They do not say how much weight loss is expected, but patients typically report losing over 30 lbs. per month.


There is no ingredient information available about any products associated with The Cambridge Diet.

Product Features

The Cambridge Diet is based off the VLCD diet, which was popularized in the early 1980's. The VLCD diet uses extreme calorie restriction combined with nutritionally-dense liquid supplements to enhance weight loss, and this method has been proven to work. Most physicians do not back the VLCD or the Cambridge Diet however, since it allows for a very small, unrealistic amount of calories per day. Patients typically consume less than 800 calories per day, and most doctors recommend consuming 1200 calories minimum for any diet. The Cambridge Diet also claims to use the power of ketosis to speed up weight loss. It claims that by putting the body into ketosis through liquid replacements and calorie restriction, it will allow the body to burn more fat and lose weight. Ketosis occurs when the body does not receive enough calories or nutrition to function optimally. The body uses its fat stores to burn additional fat as a survival mechanism. Although ketosis does burn off additional fat, it also burns additional muscle during this process and it is generally considered unhealthy by the medical community.


  • You do not have to exercise while on this diet.
  • All meals and drinks are supplied pre-prepared to you.
  • They offer allergy-free drinks and bars.


  • The Cambridge Diet is one of the most expensive diet programs available.
  • Its caloric intake is lower than the recommended standard -- doctors consider this a very dangerous diet that brings users close to starvation.
  • You must follow a strict diet plan without any substitutions.
  • This diet is not ideal for those with heart problems or a history of eating disorders.


The Cambridge Diet is very risky according to doctors and medical professionals. Extreme calorie restriction is a constant source of controversy, and diets based on calories restriction have been proven to work while also easily resulting in dangerous side effects. People who embark on this diet must be in good health mentally and physically, but still need to lose excess weight. Although the cost of this diet is extremely expensive, it might be an ideal diet to discuss with your doctor, especially if you feel that your clinical obesity could lead to other health complications - Cambridge Diet counselors strongly recommend discussing this with a doctor before trying it.

The Cambridge Diet Questions & Answers:

We summarized hundreds of user comments about the Cambridge Diet into this helpful FAQ.

What are the side effects of the Cambridge Diet?

Cambridge Diet side effects may include electrolyte imbalance, upset stomach, abdominal pain, nausea, vomiting, constipation, exhaustion and irregular bowel movements, as claimed by some users.

What are the ingredients in the Cambridge Diet?

The Cambridge Diet ingredients are prepackaged meals.

Does the Cambridge Diet work?

Although the official Cambridge Diet website offers customer testimonials, there’s no scientific research proving the plan will help users lose more.

Dieters may want to think about mixing it up a little and replacing the Cambridge Diet with a supplement like Leptigen, which contains ingredients that may help you lose more weight.

How much does the Cambridge Diet cost?

The Cambridge Diet costs £46.62 or $71.26 per week. Each meal runs about £2.22.

How should I take the Cambridge Diet?

You should follow the Cambridge Diet according to your meal plan.

Can I follow the Cambridge Diet if I have a health condition?

Women who are pregnant or nursing, those with health conditions, people taking prescription medications or under 18 years of age should contact a healthcare professional prior to starting a weight-loss program, including the Cambridge Diet.

Will thirst increase on the Cambridge Diet?

Yes, there’s a chance thirst will increase on the Cambridge Diet. The company recommends drinking more water during meals.

What do users like about the Cambridge Diet?

Some users liked that convenience of the Cambridge Diet and that the plan is available on the official website.

What do users NOT like about the Cambridge Diet?

We found that users didn’t like the cost of the diet plan and that some users didn’t notice weight-loss.

Do I need to exercise on the Cambridge Diet?

Although recommended, you don’t need to exercise on the Cambridge Diet. Adding fitness could possible improve weight-loss results.

How do I contact the Cambridge Diet customer service department?

You can contact the Cambridge Diet customer service department by emailing admin@cambridgeweighttplan.co.uk, calling a representative at+44 (0)16536 403344 or by mailing letters to Cambridge Weight Plan Ltd. Clare House Hunters Rd. Corby Northants, NN17 5JE.

Will I get bad breath from the Cambridge Diet?

You may experience bad breath from Cambridge Diet because of developing ketosis from the eating plan.

Why do I feel cold on the Cambridge Diet?

You feel cold on the Cambridge Diet due to the reduced caloric intake.

Does the Cambridge Diet come with a guarantee?

There’s no information about a guarantee with the Cambridge Diet.

Do you know of any special deals or discounts on the Cambridge Diet?

We didn’t see special deals or discounts on the Cambridge Diet. However, the last several months have been flying by, considering our readers have been taking advantage of Leptigen’s Special Trial Offer, which is just the cost of shipping and handling. Click here to try it out.

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Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Leptigen, has researched over 5000 products in the past 10 years. She has years of nursing training, experience as a manager responsible for 15 supplement brands, and completed coursework on Food and Nutrition from Stanford University. full bio.

Rating: 3.1. From 82 votes.
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User Comments

71 Comments on "The Cambridge Diet Review"


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Started this product on 1 December 2016 (Step 3) – Lost 7 to 8 kilograms on the first two weeks. I don’t feel hungry at all.
Going to start on Sole Source (Step 1) on 24 December 2016


Day four of the diet….not finding it too hard.. making sure I drink all that water is a little harder than I thought…. but today I have a huge tummy..I look bigger..and tummy gurgling not through hunger…..


Currently on my 4th day of CWP diet. i usually have my Cherry and Strawberry Smoothie in the morning, Shake for lunch and Chocolate Velvet for supper. between them I’m drinking my recommended 3 litres a day (which is the hardest part for me). I start to feel really hungry around 13:30 or 14:00, because I’m always busy at work. Anyhow, I’ve noticed for three days I’ve been having diarrhoea and head aches (my temples). I have not weighed my self as of yet but I would do every week. Good this is; me and my sisters are all on the CWP diet so we are motivating each other. However, keep it going people!!!! grin


Currently on my 4th day of CWP diet. i usually have my Cherry and Strawberry Smoothie in the morning, Shake for lunch and Chocolate Velvet for supper. between them I’m drinking my recommended 3 litres a day (which is the hardest part for me). I start to feel really hungry around 13:30 or 14:00, because I’m always busy at work. Anyhow, I’ve noticed for three days I’ve been having diarrhoea and head aches (my temples). I have not weighed my self as of yet but I would do every week. Good this is; me and my sisters are all on the CWP diet so we are motivating each other. However, keep it going people!!!! grin


i want to start this diet also.can anyone tell me it’s heloful or not

Hello. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss.


I have completed my 5th week on the plan. I have had fantastic support. I have been on many diet but have struggled to eat the full vitamin intake as a vegan. With this diet I have had complete control and have been re-assured that I am getting the full vitamin intake and calories to suit my body. I have done excellent. Lost 14Ibs so far. If I have hungry on my plan, I am allowed to eat an extra 200 calories which would consist of the appropriately listed proteins and veg. I am very happy with this plan and would highly recommend it having been on several other diets that did not work. I have read some other comments on this page about the taste of the products. I can understand, some of them are not to the standard you would normally have but this is what you call healthy…not loaded with sugar and other preservatives/additives.Plus you wouldn’t be on the plan forever. Only once you are happy with your weight and are able to recognise what foods are good/bad. Hope this helps.


hi I’m on day 2 of diet and so far so good, I find it hard to drink water and found the app to be useful as it bleeps on my fone to dink water lol so far I have lost 5lb which I’m chuffed with only another 51 to goooo


I lost 2 stone on the diet, first weeks were hard as I suffered badly with constipation, felt great when I reached my target weight, but as I gradually added more everyday foods I noticed the weight going back on. As soon as I came off the diet and started eating normally it has all come back on. Feel terrible !! But can’t afford to go back on as It was expensive, now trying to cut back on calories and eat healthy, with daily exercise. As a short fix it is a good diet, but not long term


I am really interested in joining the Cambridge weight loss program.. i have quite a lot of weight to loose!! Only problem is I’m going away the end of October and will gave lots of days nights out at fancy restaurants and burger places etc.. if I did the diet for the next 2 months and then ate normally whilst away would I gain extreme amounts? Or would I be able to have a week off then get back on it the week after? Thanks

Hello Lou. All users are different and can experience different weight-loss results.


Cambridge weight plan was the worst thing that happened to me. I have been left with a lifelong condition from which the doctors believe is because of this diet! There are so many better ways of losing weight than this unhealthy diet, Please think sensibly before doing this


I am in the 5 the week of camb diet and so far I have lost 31 pounds 14 .5 KGS. So I started celebrating I eat quarter chicken charcoal with humus garlic paste and bread for 3 days. Bcoz I can’t stay on sole source long time. I’m drink 4 LTS water daily.joined gym daily 1 hr.


I have been on the Cambridge Diet for 5 weeks now – 3 cambridge meals daily + 275g steamed chicken and 85g veg + 4 pints of water but have only lost 7lb – why haven’t I lost more weight – very frustrated

Stephen (Editor)

Are you including regular exercise?


Its a good diet but no room for cheating. I generally drink 4 litres of water per day. I have lost 2 stones so far another 1 stone and 5lbs to go. Keep going it does work.


Can I just have 2 Cambridge shakes and a healthy meal can you still lose weight

lesley cafferky

You should have three if you are only having one low cal meal as you need the all the goodness that the bars or shakes give you to keep your body healthy..You go on to just the two with another plan of meals though !

Your Name

Yes, you are likely to lose weight, but it wouldn’t be a healthy way. You would need to add another meal to give your body enough nutrition. You would get full nutrition with three Cambridge shakes though. Your consultant is the best person to advise you on the safest and healthiest way to lose weight, which would be exactly right for you and your circumstances.


Hello every one.
Day 8 on c diet. I lost 2 pounds find it hard to drink water as I have three children, Very busy mum. It’s given me head aces low moods. When I had my second daughter after nine years this helped me to slim down. I conceived. So it is frets for people who want to have a baby who are over weight. It’s not an easy diet. But which diet is. Once your past day four it dose seem easier. But hard when I am cooking
amazing food for my family. What I do is when I have my samon or my chicken or eggs just spice them up. Then I am fine. Stick to it it is we’ll worth it. I have three stones to lose. Not giving up. Feel do fat but can see the difference all ready as my clothes are a lot loser on me. Even if you have a bad day like I did we went to black pool I eat fish and chips. I was gutted after wards. Carried on with the diet the next day. So you may have a bad day but keep at it. smile good luck every body.


Lost 17 kg in 7 weeks…….mind over matter. Get busy…


I started Cambridge diet plan last week, and after the 5th day I suffered from sever abdominal pain which was there for 24 hours and didn’t get well till I stopped Cambridge’s meals completely for 2 days. I was tired & sleepy all the time as well. Why did that happened to me ?? It supposed to be good and no one have been through such a thing. So what was that !!

Breana Clyne

Great beat ! I wish to apprentice while you amend your site, how can i subscribe for a blog website? The account helped me a acceptable deal. I had been tiny bit acquainted of this your broadcast provided bright clear concept


I went on the Cambridge Diet in the 1980s. I lost the weight I wanted along with hair loss and messing up me electrolytes Once you go back to a normal diet the weight comes back. My Dr said I had put my body into starvation mode so once I started eating normally my body held onto every calorie. While on the diet and off I exercised 3 to4 hours a week


I am from Zambia and just started Cambridge Diet, my 2nd week now. So far so good but I really need a diet buddy. Kindly help I need someone to push me up. Good luck to all those on this diet.

Your Name

Hello Lulu
Iam amina from mizambique going to start diet tomorow… dnt give up!!! I am 80 need to lose 30

Your Name

Hai did this product help u becoz even I am 80 n I want to loose 30 so plz can u advise me


Lulu dear. I started on the 19th of may and I lost 8kg. I only experienced constipation.


Hi Lulu
hi will be your diet buddy been on cambidge two weeks lost 10lb first week and 4 lb the following week keep going x


I forgot to take one of my products will it affect my weight loss. Have lost 12lbs in 4 weeks did expect to lose more. Thanks


I have been doing the Cambridge plan for the last 13 weeks and can successfully say it works I have lost 56 lb and Keept it off !!
It certainly not for the faint hearted and you need to want to achieve your goals but I never feel hungry on the plan and I exercise a lot !!
If like me you plateud from previous diets than this certainly gives you the push you need totally worth the money !!