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Cambridge Diet

A liquid diet that may be too calorie restrictive for long-term success.

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With new diets hitting the market faster than we can lose a pound, it is not too often that you stumble upon a diet that has been around for more than 20 years. The Cambridge Diet has proudly clocked some years under its svelte belt. Developed in the 80s, it still enjoys a very loyal and passionate audience of dieters who have been successful at losing weight and keeping it off.

It is a liquid diet program that involves drinking 3 servings of the signature Cambridge Diet formula each day with or without food. The three servings provide you with protein (either 30 or 50 grams), carbohydrates, fat, fiber and your daily-required vitamin and mineral allowances.

About ten years ago, the Cambridge Diet added an additional product to their 330 Original Product. The 420 Food for Life product contains 100% of the required daily protein needs in 3 servings whereas the 330 Product contains 75% of the required protein. The protein source comes from whey and soy. Both of them are nutritional supplements that do not contain drugs, medicine, stimulants or herbs.

There are four ways for you to follow the Cambridge Diet: - The Fast Track: Consume 3-4 servings of Cambridge a day and no additional food. - The Alternate Program: Use 3-4 servings of Cambridge for one day with no food and then the following day, consume 3 servings of Cambridge with the addition of 400-800 calories of low fat, low calorie health food. Continue to alternate in this manner. - The Regular Program: Eat 3 servings of Cambridge 15- 20 minutes prior to each low calorie meal. Calories should not exceed 400-800 for the entire day. - The Regular Program 2: Consume 3 servings of Cambridge and eat one meal of low calorie food each day. Calories should not exceed 400- 800 calories for the entire day.

  • Cambridge Diet contains all the essential nutrients
  • Has a proven success rate
  • Safe for diabetics and those with high blood pressure
  • Its limited consumption of food may incite excessive eating
  • May be too calorically-restrictive for some individuals
  • Does not teach you to eat in a healthy and long-term way
  • Long-term weight loss may not be sustained
  • Calories might be too restrictive for exercise

The foundation of the Cambridge Diet is its signature line of shakes. They come in an array of flavors like chocolate, vanilla, eggnog, strawberry, cappuccino, banana cream and many more. The shakes come in two styles: The Original and the Food for Life.

The Food for Life product contains 51 grams of protein, 54 grams of carbohydrates, 3 grams of fat and 140 calories per shake. It also includes 100% of the Recommended Daily Allowance (RDA) of vitamins and minerals. The Original contains 31 grams of protein and contains about 110 calories per shake.

There is also a line of additional Cambridge products like soups, nutrition bars, and super oats.

When taken the prescribed three times a day, you'll only consume 420 calories. If you select to follow a plan that allows for food, you should not consume anymore than an additional 800 calories a day and these calories should come from low-calorie and low-fat foods like vegetables and lean proteins. If you are on the smaller side, it is recommended that you only consume an additional 400 calories on top of the 420 calories for the Cambridge products.

You are also strongly encouraged to drink at least 3-4 liters of water each day.


Since the Cambridge Diet is so restrictive, exercise should be done cautiously. It is not recommended to start a new strenuous exercise program while on the Cambridge Diet. Moderate exercise like walking or biking is useful once you start to lose weight, providing that it is approached with caution and not done with excess.


There is no question that The Cambridge Diet has been around for a long time. And in the process, many have had luck losing weight by following its strict dietary regimen. Since the diet is so low in calories, check with your doctor before starting it, especially if you have an existing medical condition.

The Cambridge Diet devotees swear by the diet's ability to help them lose weight as long as the program is followed correctly. But like most diets that rely on shakes or supplements to shed pounds, its potential for long-term weight loss and for instilling sound and healthy eating habits in you is not that promising.

Common Misspellings

cambrdge Diet, cambradge diet, cambridge deit, camebridge diet, cambridge liquid diet,

Related Diets: Cabbage Soup Diet, Juice Diet, Liquid Diet, Master Cleanse Diet, New Lifestyle Diet, Slim-Fast, Isopure Shakes, 21 Pounds in 21 Days

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(Page 14 of 58, 1157 total comments)


Hello all, i am guy scheduled to start the sole source on 5th Jan (get Xmas out the way), and intend on doing a 3mth programme till end of March. By then i hope to have lost 2 and half stone - currently 12stone 12ibs. Hope thats realistic. Clearing the house of food (in the boot of the wifes car lol) up till the start date. Then once iv lost, will hit the gym once i start eating the solids again. Any tips and advice would go a long way, especally from any guys who might be doing it!!

Good luck all.

posted Dec 13th, 2008 7:53 am



i started CD TODAY.I am 13.8 stone at the moent and i have to lost 4 stone by mid of March.Did some body lost 4 stone in 12 weeks.Is it possbile?.is it good to excercise to tone body becuase i have big muscles body.Any tips will be very helpful.

posted Dec 11th, 2008 12:01 pm


I feel that the Cambridge Diet works very well as the liquid diet reduces the fat content in the body and improves the blood content which will be very useful especially for women. I beleive that with this Cambridge Diet program one can feel succeeded and happy.
posted Dec 8th, 2008 11:12 am


OK, 4 weeks in .. weighed yesterday .. LOST 1 STONE!!!

Even though I had that REALLY BAD WEEK, I didn't give up. Christmas party is next week and I hope to lose another 7lbs before then and another stone before Christmas.

Will keep you updated :)

posted Dec 7th, 2008 3:49 am


Just started today. Really need to shift the weight . Not sure what sort of weight you lose in a week ???

Does eveybody know how long you have to stay on Step 1?

posted Dec 5th, 2008 1:44 pm


Hi all i would like to say well done to u all for choosing the cd!! although im only on day 4 of this diet so far im actually enjoying -although not too keen on some of the soups. im looking forward to my weigh in on monday will let u all know nxt week!! good luck all and keep slurping at ur water!!

posted Dec 5th, 2008 6:06 am


hi all day 5 of starting cambridge doing ok except from being so cold all the time anyone else feeling it.

posted Dec 3rd, 2008 12:00 pm


Findig it hard to focus . I really beleive in this diet as I know it works and it has worked for me before , but I need advice on willpower, and how to remain focused. Please people if you can email me for some much needed motivation and inspiration.
Take care and keep up the good work all of ya. You doing good.

posted Dec 3rd, 2008 8:46 am


Message for ROSY, can you tell me how your friend managed 5st in just 14 weeks, that is fantastic. Was she 100% strict with the plan and drank all her water?
By the way that is a great loss for you too, well done. I have about 3 stone left to loose and have a wedding in january and would like to loose at least 1 to 1.5st by then, even though xmas is only weeks away. Any yadvise?

Does anybody know what colour the Ketosis sticks should be to know if your body is in Ketosis??

posted Nov 30th, 2008 2:56 pm


I love this diet and for the first time in ages I feel different and actually quite chuffed with myself. I have lost 22lbs in 3 weeks. My clothes are really loose round my waist especially and people are starting comment.

I am drinking loads and loads of water, literally 4 litres as my c/d counsellor says the more you PEE the SLIMMER YOU WILL BE!!!! Woohoo. Keep going you guys, we will look fab for Christmas and beyond.

Snowy xxxx

posted Nov 29th, 2008 2:53 pm


Hi everyone its really nice to read all the stories posted I took is on the sole source it will be my 5 week for my first 4 weeks I lost 22 pounds and yes it should be more but I cheated couple of times so now I am on track for the week I have to lose 102 pounds more to go can some please help when I cheat I will drink a dieter's tea and I will walk extra miles and plus I drink about 5 1.5 litres of water per day. PLEASE HELP!!!

posted Nov 29th, 2008 12:27 pm


hi everyone ,this is week 3 and i still have not lost anymore weight go to diet teachers on mon for my 3rd weigh in lrts hoping her scales say different to mine.i am detemined to stick with it .my husband had steak and chips with peppercorn sauce last night for tea and i had my chichen and mushroom soup c/d and i was not the least bit bothered . but if i am not loosing weight i don't know what to do .my husdand thinks i look thinner. but before i started the c/d i took photo's of my stomache and i can tell you it was not a pretty sight infact if ever i lost my phone i may well be arrested for giving people heart attacks! well anyway i took another photo of my stomache again last night and you could really tell how much smaller it is i was quite amazed and chuffed. so maybe i am retaining fluid because on my little ketone sticks it is number 3 pink well that's all for now check in tomorrow, this is good it's like therapy writing it all down and much cheaper!!!!

posted Nov 29th, 2008 3:33 am

Donna Hamilton

I am trying to lose my last 20 pounds and I am having a REALLY difficult time. I use to be able to stick to sole source but now- I am struggling. Seriously, I'm so close to my goal- I'm 5'8 and weigh 160 pounds....I want to be 140....does anyone have any tips to give me? I believe in this diet but- havent seen the scale move lately.....what's the deal?!?!

posted Nov 28th, 2008 2:10 pm


Had the worst week. Have had everything I'm not supposed to plus eating the bars/drinking the shakes as a meal replacement. I am due on and my willpower just goes out of the window. This happens to me EVERYTIME and I just cannot control it. The urges are too strong. Hopefully I can exercise it off and not gain anything. Weigh in next week :(

posted Nov 28th, 2008 10:12 am


I love this diet, first week was horrible but once that's done it gets so much easier. I'm on week 5 and so far have lost 2 stone. My friend lost 5 stone in 14 weeks and a year later is still maintaing.

posted Nov 28th, 2008 7:33 am


haven't been hungry on c/d and drink 21/2lts water plus 200mls skimmed milk i find it easy to follow and the willpower to stay with it for now but this is my 3rd week and i have only lost 61/2 and that was in week 1 just hope next week i have a big weight loss just to prove that i can loose weight and have the willpower to stick with it. i am still very positive.the only thing i can think of is i take medication from doctor does anyone know if that could stop me loosing weight on c/d because i have lost weight on ww without any bother but i put it all back hence c/d.

posted Nov 27th, 2008 3:53 pm


hi evertone i started c/d 3 weeks ago my daughter is getting married in feb2009 she has lost about 20lbs in 4 weeks. i thought great a quick fix i will do it 1st week great lost 61/2lbs i was amazed .week2 thought this is great the diet is ok you dont feel hungry plenty of water i am doing fine . week 2 weigh in i am full of confidence got on scales at diet teachers house stayed the same. week 3 get weighed tomorrow and guess what i have only lost 1lb .what's that all about i am going to give it another week and if i have not lost any weight well there must be something wrong with me. is it that i have been fat for that long it just does not want to shift. can anyone suggest something that might help.

posted Nov 27th, 2008 3:20 pm


hey everyone im on the cambridge diet again i dne it b4 for3 weeks and lost 1 stone buh wen i hit the barrier the waall i stoped n i doubled the weigh on a again, im starting it again this time with hope i will fullfill the task in hand n get my body tha i want , has anyone got any tips on how toi handle the seduction of the brain telling u to eat, i try distract ma self jus rle hard i wna loos 5 stones by march i wnt my life how it used to me any tips on how to handle these problems im so confused :s

posted Nov 27th, 2008 7:41 am


You do get cravings on this program just like anyother...the determination should hopefully deter yourself from givng in to those cravings...however if you do i have on many occasions...don't beat yourself up about it....the CD is easy enough to get back on track and carry on where you left off....

I have been on the CD for 8 wks and have been really happy with the is not coming off too quickly which is just the way i want it...still have another stone and half to lose...but in those 8 wks i have dropped 2 dress sometimes inches count more than pounds....

the aim is to try and stay focused as much as possible...Be proud of what you have achieved so far...this weight mullarky is not easy....

christmas is coming and the goose is getting slimmer!!!!!

posted Nov 27th, 2008 2:17 am

deborah richardson

hi i been on this diet a week and thought it was great im now avin it tough just want to eat and im not even hungry think it in my head i wud really just like to speak to some one who been in this situation as i want to continue this diet

posted Nov 26th, 2008 7:52 pm


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