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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 1 of 59, 1161 total comments)


2,5 weeks into it, already lost 5 kg!

posted Jan 23rd, 2016 2:10 pm


i have been on this for nearly 4 months and lost over 2 stones. i feel great about myself and now actaully think what i am putting into my stomach before eating as i do not want to get big start making healthier choices and ofcourse you do have some bad days but you just go back to your NEW Lifestyle.
Its all about perseverance and sticking to it

posted Jan 18th, 2016 12:18 pm


will start this Wed need to loose almost 30 Kg :(

posted Dec 7th, 2015 12:38 pm


Best weight loss program for me. Ive tried numerous other programs like Jenny Craig, Cowens, etc but nothing has worked like this one.

posted Dec 3rd, 2015 5:35 am


It should be pointed out there is a difference between the American CD & the UK CD.I am doing the American version. I lost 50 lb in 4 months with 1 plateau in 2013. For 90 days I did the SS with some breaks with meals added.My blood pressure, A1C, and cholesterol numbers were all good by the end of the diet. I recommend starting out eating low carb before doing the SS to reduce cravings, & withdrawal. It is recommended to drink 8 to 10 8 ounce glasses of water. I recommend taking potassium and magnesium supplements as I experienced some leg cramps at night.Pros:It is simple to follow. It removes regular food from the equation if doing the SS.Weight loss can be rapid - encouraging success, and it is nutritionally sound, Weight loss IS sustainable IF the recommended Cambridge maintenance program is followed. Cons: This diet is not easy.It won't be sustainable unless the necessary maintenance program is followed. Calorie intake is lower and may not be suited to all individuals.

posted Oct 11th, 2015 12:50 pm


As with all diets - I don't think there's such a thing as a "good diet" or "bad diet", it's more about what works for You. For example my best friend had great results with Slimming World diet, but I couldn't stand it. Then I've had great results with Cambridge, but she couldn't stand it. The thing I like about Cambridge is the fact that you don't have to think or plan ahead, you just have what you're told to have and nothing else. Yes the first week is murder. Headaches and hunger. Buy yourself some headache pills for the first week. After a few days the hunger goes away, and what kept me going was herbal and fruit teas - with sweeteners of course. The results come very quickly. And seeing your consultant for weighing in, gives you the extra boost of motivation. Personally I like this diet and it works for me. Yes it's boring and you miss the food but the results are worth it.

posted Sep 5th, 2015 4:58 am


The program has become relatively easy to me after 8 days. I could walk now without feeling like I could faint. So far I lost 3 kg despite having PCOS. I'm so happy at this rate I might finish in 3 or 4 months.

As for the taste thank god I told the consultant to give me a good variety. because I found out that some products were terrible alone even the popular ones that I have been excited about and I plan on avoiding them next month.

posted May 18th, 2015 12:48 pm

John Woods

On the weekend I won the Australian Cambridge Slimmer of the year after losing 42kg.

My advice would be to stick with it. The first week I found to be hard but once that was over the diet for me became real easy to do.

The feeling that you have when you reach your goal is unbelievable. I always knew I had excess of 40kg to lose but I never looked to far ahead. For me the way my body changed and fitting into clothes was more important than the kilos lost.

Good luck with your diet, I know its corny but if I can do it then anyone can. Just stick with it and in no time you will be a new person

posted May 6th, 2015 11:43 am


I have been changing my eating habits to healthier options with no luck due to pcos, this my last resolution and I'm hoping it will work to shed my excess weight.

The cons so far as I'm still on day 2 is that the meals taste weird its like someone promised you chocolate but mixed medicine in it you can clearly taste the chocolate but you know there is something else. I'm looking forward to see how this turns out.

posted May 5th, 2015 9:03 am


Day one ok days two and three I had the worst headache of my life (I'm on stage 2) going to persevere but I'm hungry :(

posted Mar 11th, 2015 9:45 pm


Stupid, Stupid, diet!!! Of course weight is going to drop if you starve your body, eat 800 cals a day worth of chocolate and you will drop wait. All this diet will do is destroy metablosim result in greater weight gain once you come off their profit hungry crappy ingrediant product. Research iifym (if it fits your macros), and educate yourselfs the basics of nutrition. workout your maintanaince calories, record all the food you eat during a week (everything!!!!) use an app like myfitness pal, if your wait goes up, you are eating in a calorie surplus, so need to reduce calories (start with 500). if your wait does not change after recoding evrything, you know that is your maintaince level. to lose wait all you have to eat in a deficit, so cut 300 calories from from your maintainance, then when you plataeu a wait loss stops drop another 250 calories. you should only be aiming to lose around 2lbs a week. or you will destroy your metabolism, end up with saggy stretch marks. i am a personal trainer and it pains me to see people falling for this crap and destroying your bodies. nothing healthy about starving yourselves. Its not difficult to lose weight with a sensible understanding of basic nutrition, and you will be able to continue to eat the foods that you love (within reason). I have a girl dropping 2lbs a week whilst consuming 1,800 calories a day, and she has a nomal metabolism. im sick of these companies taking advnatage of the uneducated promising unatainable goals. If anybody wants help, I will aid you with a sensible nutritional plan that will guarantee sustainable fatloss over a prologonged time, allowing to eat foods that you like. at the end of the day its a lifestyle choice and a marathon not a sprint. I will feel a thousand times better doing this the proper (I am completely free) and I will do my best to get back to you and help you!

posted Jan 23rd, 2015 3:16 pm


Love it Love it Love it. Great meals. love the chocolate velvet the most.

posted Jan 22nd, 2015 11:59 am


So easy,fast results, lots of flavours to chose from. Cost is offset by the fact that I don't buy coffees or snacks anymore

posted Nov 22nd, 2014 11:44 am


yeaah its just the best

posted Nov 29th, 2013 7:52 pm


have done cambridge before it is amazing. transforms your life for the better.

posted Aug 12th, 2013 12:02 pm


Hi all,ihave started the CD yesterday,im on stage 2,3 cd meals a day and a low calorie meal too.Yesterday my 1st day I couldn't wait for my dinner,and savoured every mouthful lol,and today day two,this morning I felt tired when I woke up,but then had 2 glasses of water,a black coffee and a cd choc bar and felt wide awake again for a few hours.I have my own cleaning business so am doing a strenuous job,so not sure if 800 cals a day will be enough.Although im gonna stick it out a long as I can.I want to lose at least 4 stone.I will prob have extra veg,as 80 grams doesn't seem quite enough,im hoping it wont make much difference to the diet beings I clean for at least 8hrs a day.My weigh in is next Tuesday so will let you know my weight loss.Im so excited about this,and am 99.9% sure I will stick to it as long as I feel well.Good luck to all of you who are on this.My friend inspired me,she lost 12 stone in one year and is now a recent consultant,she has started me on this,im so happy.xx

posted Mar 20th, 2013 2:52 pm

Gail sheeran

Where can I buy the Cambridge Diet? If I live abroad can I do the cambridge diet?

posted Mar 6th, 2013 8:50 am

dan 198

starting my diet 2mrow date 16th feb 2013. start weight 22stones 9lbs.

shall start the 3 CD and 1 small meal.

need to lose weight due to serious health.

wish me luck xx

posted Feb 15th, 2013 5:19 pm


It works for me !
Its the second time in my life on diet at age 41
office work life with difficult hours for exercising so I was looking a program that does not combine exercise.
I lost 12 kilos in 7 weeks (in an average 1.5-2 kilos per 10 days). Yes it was difficult the first 4-5 days but then it becomes so easy that I do not believe that is me loosing the weight because you do not need to think what to eat, prepare, what is right or wrong ... is simple.
The diet has 7 steps to prepare you for long term good eating habit i.e. eat with balance.

posted Nov 20th, 2012 12:30 am


Lost 3 stone in 9 weeks (on SS) only 2.5 stone to go! I absolutely love CWP x

posted Nov 18th, 2012 10:53 pm


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