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The 1:1 Diet by Cambridge Weight Plan Reviews 

271
TrustScore 4.5 out of 5

4.7

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Rated 5 out of 5 stars

Undertook the CWP under multidisciplinary medical supervision (cancer and diabetes). The focus was to cleanse the physical body of toxins, the weight loss aspect was an added bonus (started at UK size... See more

Rated 5 out of 5 stars

Losing over 6 stone with The 1:1 Diet has completely transformed my life — not just physically, but mentally and emotionally. Living with chronic pain, spinal conditions, fibromyalgia and three bow... See more

Rated 5 out of 5 stars

The best diet I have ever tried! Science based, clinically tested, safe and provides amazing weight loss results. There are 6 calorie programs, all tailored to you. Maintenance place a big role as i... See more

Company replied

Rated 5 out of 5 stars

I started on the 1st January 2025 and had lost over a stone six weeks in, love the shakes, yoghurt pancakes are one of my favourite along with the porridge. Fits into a busy life, so instead of pickin... See more

Company details

  1. Weight Loss Service
  2. Food and Beverage Consultant
  3. Food Manufacturer
  4. Food Products Supplier
  5. Health Consultant
  6. Life Coach

Written by the company

The 1:1 Diet, originally known as The Cambridge Diet, was launched in the UK in 1984 and has helped thousands of people worldwide lose weight and live healthier, happier lives. Through our inspiring Consultants, we provide meal replacements and products that help aspiring dieters lose weight and improve their health. Our meal replacements and products are specifically designed to ensure each dieter gets the correct amount of nutrients while reducing their calorie intake. Developed, tested and validated by expert nutritionists and researchers - “Your body gets all the nutrients it needs and uses its fat stores for energy. And because the diet is high protein, you don’t lose muscle mass or have cravings.” You choose your personal diet Consultant who will help you create your Plan and give you the products you need. There are two ways to start—you can either find and contact a Consultant from the thousands available or try the diet with no obligation via the Taster Pack for only £9.99. Both options are available on the website at https://www.one2onediet.com/.


Contact info

Promotion box for The 1:1 Diet by Cambridge Weight Plan

Try The 1:1 Diet for only £9.99

Start your weight-loss journey and grab The 1:1 Diet Taster Pack today

4.7

Excellent

TrustScore 4.5 out of 5

271 reviews

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4.7

All reviews

(271)

5 reviews in the last 12 months

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Rated 5 out of 5 stars

Cancer and Diabetes

Undertook the CWP under multidisciplinary medical supervision (cancer and diabetes). The focus was to cleanse the physical body of toxins, the weight loss aspect was an added bonus (started at UK size 12). I’ve come off all medication, as well as used the fasting period to reasses my physical needs (whole food diet and mindful exercise) and review the workings of my mind (Kristyn Rose’s Yoga Nidra YouTube videos provided the destressing platform). An amazing learning curve that opened my eyes to the value of life as CWP provided a physically peaceful platform for my body. My motivation remains Peace in mind and body. My motto is Progress not Perfection (I did go off plan a lot but refused to give up on the CWP). An excellent program.

June 2, 2026
Unprompted review
Rated 1 out of 5 stars

VERY DISAPPOINTED WITH 1:1 DIET

I started 1:1 diet with enthusiasm and full of hope. All was going well and I lost 2stones. I placed an order for food through my consultant, food never arrived. When I contacted my consultant she said that the Post Office had backlog that the order would arrive in a couple of days. To cut a long story short, food never arrived, no contingency plan for me to continue my dieting. It took 6weeks before my consultant reacted and by then I had started putting the weight back on. That was how my dieting ended, no money was refunded neither was food supplied. All my effort and money went to waste. When I complained, nothing was done. Solicitor told me that I was treated in that manner because there was no contract in place, so be careful. ASK FOR A CONTRACT

August 13, 2025
Unprompted review
Rated 5 out of 5 stars

Losing over 6 stone with The 1:1 Diet…

Losing over 6 stone with The 1:1 Diet has completely transformed my life — not just physically, but mentally and emotionally. Living with chronic pain, spinal conditions, fibromyalgia and three bowel diseases, I can honestly say this plan has given me my life back.

The bad days still happen, but they no longer define me. I’ve fallen back in love with life — I’m so passionate about helping others discover what’s possible too. For me, this hasn’t just been about weight loss, it’s been a lifeline. 💛
— Nicki x

October 16, 2025
Unprompted review
Rated 5 out of 5 stars

Support is Key!

The personal support I received from my consultants was 2nd to none! I did the work, but would not have succeeded without their support. I also found the products sustained me, I didn’t feel hungry while on plan, although I did have to fight the cravings!

January 13, 2025
Rated 5 out of 5 stars

It was very challenging

It was very challenging. For so many years had been consuming lots of ultra processed foods. Which was over 2,000 calories a day. it’s difficult to change the mind set in regards, to denying yourself the pleasures of eating that which is wrong and staying on the path of eating 600 calories a day. I was extremely weak and lost a lot of hair and muscle.in transforming your body, it takes serious self discipline, dedication and determination to see it through. I seriously believe, a lot has to be done with the food industry to reduce obesity in our society.

November 23, 2024
Rated 4 out of 5 stars

Ready made meals/ shakes

The experience itself is amazing as seeing the weight drop.off busts confidence and clothes start to fit better.it is easy to follow aswell as having many options when it comes to product range. I would definitely recommend it to others. The step up stages make it easy to follow and understand. The aap is an amazing addition with lots of tips and tricks to use.

There is not many ready made hallal options in the step up meals. There needs to be more options in the ready made shakes. A lighter chocolate option would be nice in the ready made shake.

February 6, 2025
Rated 3 out of 5 stars

I have lost 3 stones with the 1.1 plan

I have lost 3 stones with the 1.1 plan. The journey took me from January until May of 2024! I have lost weight before with a Slimming club so I didn’t really have the support of a consultant on the 1.1 plan.
I just used my own motivation to want be lighter and feel healthier and look better.
It works if you follow it, no excuses no time off just get the job done.

May 22, 2024
Unprompted review
Rated 5 out of 5 stars

It works!

I followed the plan and lost the weight in months, which I'd spent years trying to lose via other diets. I followed up the steps and now have a stable weight and healthy diet.

January 14, 2025
Rated 5 out of 5 stars

Happy dieter

Always found the Cambridge diet easy to follow and its healthy. I knew i was getting the correct vitamins without having to think about it planning foods, its all there and done for me

June 2, 2024
Rated 3 out of 5 stars

Brutal Diet

I found the diet to be great for a holiday or special event. It is not an easy diet and once you lose the weight - it goes back on really quickly. It makes you feel inadequate that you can’t stick to it when others can. Having a Consultant is fine but at the end of the day you have to diet on your own.

September 4, 2024
Rated 5 out of 5 stars

Tryed all diets with out success,till I…

Tryed all diets with out success,till I did the one -one diet lost 8stone which I very proud of .knowing my
Inside parts are all very well .And I am very heathy don’t get every day sickness.all I can say is I am very pleased with the results I have achieved .

May 22, 2025
Rated 5 out of 5 stars

This plan changed my life!!

This plan changed my life!!
The 1:1 Diet was the first diet plan I had ever done that taught me how I could live a healthy life, control my portion size & lose weight. More importantly, how to maintain what I had lost.
Being 4 stone lighter has transformed how I live my life & my relationship with food.
The 1:1 support is priceless.
I highly recommend this plan 100%

May 20, 2024
Rated 5 out of 5 stars

The 1:1 diet takes out all of the hard…

The 1:1 diet takes out all of the hard work of calorie counting. The products are great so much to choose from.
The steps allow you to match your lifestyle and also depend on how much weight you want lose. The weekly support is amazing it also makes you accountable which is definitely an incentive to reach your goal.
The products are tasty and nutritious and once on plan you start to feel great after the first week. On reaching goal going through the higher steps to maintain is great. This is no faddy diet it has been going for over 40 years backed by the nhs. This plan help change your mindset towards food and also helps you make better choices. I would totally recommend the 1:1 diet by Cambridge

May 19, 2025

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