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The 80-20 Diet Review - 6 Things You Need to Know

I’m here to cut through the noise and get you to the bottom line on the 80/20 Diet. We did one of our comprehensive reviews, looking closely at the ingredients, side effects, customer service and clinical research. Plus, we read user comments from all over the web. Then, we summarized and condensed it all to give you the info you need.

The 80-20 Diet Readers: Noom is offering our readers a free trial, for a limited time. Click here for this special offer!

What You Need to Know

First off, the 80/20 Diet is a book written by Teresa Cutter. The plan is based on the premise that for six days every week, or 80% of the time, you eat well. For one day, the remaining 20%, you are allowed to have indulgences. It is not a license to binge or lose control and eat whatever you want, whenever you want, as much as you want, but allows for a bit of freedom and flexibility.

The book contains more than 130 recipes so people get guidance on what and how to eat. The author is one of the leading authorities on healthy cooking, as she is a well known chef, nutritionist and personal trainer in Australia. We like that the book is affordable and written by a credible person, but read on…

Books Don’t Mean Action – “No Motivation?”

Our first concern with the 80/20 Diet is that the motivation to stick with it may not be there. Simply purchasing and downloading a book onto your Kindle doesn’t mean you’ll actually do anything with it. Reading the advice doesn’t mean you’ll put it into action. There is great deal of information about nutrition, but there doesn’t seem to be a lot of step-by-step guidance to help people understand exactly how to follow the plan. “If a user does not have the willpower to stick with it, there’s no reason for it to work,” offers our Research Editor.

“This book wasn’t at all what I’d hoped. I need easy, quick recipes that the rest of the family will also eat,” said one reader.

Is It Helpful

Helpful? – “Not Exactly”

While there are recipes to choose from and help you get started with healthy eating, the book is based on the premise that people will not only be able to afford the fresh ingredients, but they will also have the time to cook all the meals.

One user said, “She seems to lose focus on the actual structure of the diet and gets caught up on the nutritional values of certain foods.”

“Recipes aren’t as good as on the healthy chef website. Other healthy diet books like csiro total wellbeing diet are better,” claims another.

Our research indicates that if there’s part of a program or book that’s difficult, like needing to cook every single meal, it is significantly harder to use over the long term and that means chances of success may be limited. If the 80/20 Diet requires too much of the reader, that could set them up to fail.

The Science

The Science – “Effective?”

There is no science behind the book itself, but the diet and exercise routine mentioned is based on the basic science that you have to have a certain amount of calories to survive, and in order to lose weight, you must create a deficit between what you eat and what you burn. At DietSpotlight, we believe healthy eating is one of the best ways to weight-loss. The 80/20 Diet supports this theory, but it’s not unique.

What Users Are Saying

What Users Are Saying

“I have been following this for a few years now. A very healthy and enjoyable lifestyle. Lost 20kg in 6 months on it and now maintaining.”

“Horrible suggested menu. Nowhere near enough to stop feeling hungry.”

“Would anyone seriously have a whole lettuce drizzled in oil and lemon for a meal? Totally unhealthy with no protein. Not to say boring.”

Bottom Line

The Bottom Line – Does the 80/20 Diet Work?

So, are we racing out to buy the book? We were quite interested in looking through the 80/20 Diet, but in the end we have doubts about recommending it as an effective weight-loss plan. The plan is based on words on a page and there are quite a few recipes that take far too much time to prepare. Plus, some readers may find it difficult to maintain motivation.

If you’d like to shed some pounds, we recommend choosing a program back with clinically-proven methods that are part of a plan that doesn’t require you to spend hours cooking.

Among the best products we’ve seen this year is one called Noom. It is made with a combination of tools and resources that we’ve not seen in other apps. We love the clinical testing and the human coaching, but it’s the foundation in healthy lifestyle changes that makes this an extremely beneficial weight-loss tool.

We are thrilled to see the makers of Noom are so confident in their product they’re giving new customers a free trial, which is a good sign.

Learn More About Noom »
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The 80-20 Diet

What are the side effects of the 80-20 Diet?

Some potential side effects of the 80-20 Diet include malnutrition and upset stomach.

What are the ingredients in the 80-20 Diet?

The ingredients in the 80-20 Diet are simply common food items.

Does the 80-20 Diet work?

There’s no scientific research proving the 80-20 Diet will help users lose weight, also eating healthy foods is a staple of the majority of diet plans on the market.

How much does the 80-20 Diet cost?

The 80-20 Diet costs $18.52 in a book format.

How should I use the 80-20 Diet?

You should use the 80-20 Diet all week aside from one day when you indulge. The book provides guidelines about foods to consume and avoid.

Do I need to restrict calories on the 80-20 Diet?

No, you don’t need to restrict calories on the 80-20 Diet. You will need to eat a balanced diet, six days a week and you’re allowed to indulge on one.

Do I need to exercise on the 80-20 Diet?

No, you don’t need to exercise on the 80-20 Diet, although the plan features fitness tips to help maximize results.

Does the 80-20 Diet come with a guarantee?

The company stats there’s no guarantee on the 80-20 Diet.

7 The 80-20 Diet Reviews

  • 80/20 by Teresa Cutter and 80/20 fat loss

    what is the between 80/20 by Teresa Cutter and 80/20 fat loss by
    Emma Deangela

    • Maribel (Editor)

      Hi Adrienne! For detailed product instructions, please refer to the 80-20 official website for more information on how it differentiates.

  • Your NameSandy

    I actually purchased this program awhile back and never started it. Hopefully it doesn’t drop off? I did log in and it has all the info so hopefully I can get with the program. Does this let us share and met other people who are on the program? I’m not a WHIZ at computer stuff but hopefully this won’t be that hard. Thank you

    • Adrian (Editor)

      Hi! For detailed product and program information, please refer to the 80-20 Diet’s official website.

  • Getting error when I download my materials
    Carolyn E. Smith (Verified Purchase)

    I have not been able to log in to down load my materials because it says there is an error. Please contact me and tell me what to do.

  • Loved the product.
    Anna (Verified Purchase)

    Although I haven’t started this yet.. It’s a relief to finally find a meal plan that doesn’t have 6 different lunches and 6 different breakfasts.. For one week it alternates 2 meals for each and that’s more realistic for me as I make my lunches in bulk for the week and generally have the same thing for bfast most mornings.. So yes you buy different Ingredients each week but for two different types of meals.. Not 7 different bfasts lunches and dinners like most other books and plans!!

    • E

      How did that work out for you Anna?