The simple 8-week path to optimal health, ideal weight & the best food of your life

Hi there! I'm Andrew Olson, the guy behind One Ingredient Chef and creator of The One Ingredient Diet – a simple way to lose weight and achieve optimal health. Check out this quick video to learn how eating 'One Ingredient' can make all the difference:

The One Ingredient Diet:
An Uncomplicated Guide to Unprocessed Food

Today, most people in America (including our kids) are overweight or obese. The number of people who die from diet-related diseases would fill nine 747s. Every day.

When we take a look at our modern diet, is this any wonder? The pre-packaged meals with dozens of synthetic chemicals. The sandwiches with 114 (one hundred fourteen!) different ingredients in every bite. The fast food meals dripping with processed fats.

It was on my own journey to stay healthy and avoid processed food when I began to realize that this problem of obesity and diet-related disease could be solved. Yes, food is the problem, but food — the right kinds of food! — can actually be the solution...

My thinking was, if we want to avoid processed food, why not eat nothing but whole foods that have just one ingredient on the label? In one simple step, this would cut out all processed ingredients from our diet and leave us with only the natural food that our bodies were designed to eat.

I called this "The One Ingredient Diet" – it's a simple way of eating that is basic enough for a first grader to understand, but powerful enough to transform our lives:

Eat plant-based foods that start out as one whole ingredient.

One whole apple. Brown rice. Kale. Quinoa. Lemon. Blueberries. Simple food combined into simple meals that taste amazing and strengthen our health with every bite. It just makes sense.

I have been sharing this message through my website, One Ingredient Chef, for several years and it has been a phenomenal journey. The unprocessed recipes on this website help a quarter of a million readers per month cook better food and enjoy better health.

Today, I'm constantly receiving messages like the one below from readers who have put this philosophy into practice – the power of real food never ceases to amaze me:

I just have to say that I am amazed with this program. I never thought I could live without meat but since the recipes are so good, I really haven't missed it. I have lost 12 lbs without even trying. Having your recipes readily available has been the reason for my success. They are so delicious and filling, I never feel hungry or deprived.

The other amazing thing - I usually have a nagging headache EVERY day. You just learn to live with it. Since day 2 of the challenge, I have not had a headache. I have not popped any aspirin or ibuprophen. That in itself is amazing. Overall, I feel better physically, and I hope as time goes on I will feel even better. I plan for this to be a new way of life for me. Thanks for introducing me to this incredible journey!

- Carol L.

This eating plan absolutely works – it can help us maintain an ideal weight, avoid diet-related diseases, and live with more vitality than ever before.

If you are like most people, however, the biggest challenge is simply getting started. The most common question I hear when sharing The One Ingredient Diet is, “how can I put this simple idea into practice to get results in my own life? ”

Over the past few years, my answer to that question was always, "let me show you." Both individually and in small Facebook groups, I personally guided hundreds of students through the basics of One Ingredient: teaching the principles, listening to their challenges, sharing recipes, and doing whatever it took to help them achieve lasting success with this unprocessed eating plan.

Just like the woman above, the results that students achieved were phenomenal. Here was a simple, easy-to-follow program that can help us all truly achieve better health (including a healthy weight), less diet-related disease, more energy, and countless other benefits — all while enjoying the best food of our lives!

As I began to watch more and more people achieve results, I started to imagine a much bigger solution that could help anyone jumpstart their journey towards an unprocessed diet. Wouldn't it be great to have a system that could guide you through the exact process that has worked for so many others... a system that could help you easily master these simple concepts, learn to cook the recipes, avoid the pitfalls, and instill long-term healthy habits – one step at a time?

It has been more than a year in the making, but I am so excited to introduce this program. It’s called The One Ingredient Transformation Course: an 8-week system that I designed to help you put the power of ‘One Ingredient’ to work in your life.

The course is built around fun & engaging resources (videos, lesson documents, all-new recipes, assignments, a community message board, and more) that help you take action and get results. By the time you finish these 8 weeks, you’ll be eating the best food of your life and enjoying optimal health & vitality.

The One Ingredient Transformation Course
Is Designed To Help You...

  • Boost Your Health & Vitality

    The natural compounds in real food are perfectly designed to boost our health and provide optimal levels of energy to fuel our busy lives. Eat ‘One Ingredient’ and your body will begin to thrive like never before.

  • Reach Your Ideal Weight

    Our modern weight problems are the result of processed food that we were never designed to eat. Switch to whole food and watch your body return to its ideal weight – without counting calories or limiting portions.

  • Enjoy More Delicious Meals

    As any chef can tell you, the fake ingredients in processed food just can’t compete with the flavors of fresh ingredients. The whole-food recipes in this course will have you enjoying the tastiest food of your life.

  • Keep Food Simple

    Crazy meal plans, difficult recipes, exotic ingredients? Leave them at the door. One Ingredient is all about simplifying your life around food so that you can save time, eat better, and become healthier.

  • Thrive on a 100% Plant-Based, Nutrient-Dense Diet

  • Shop / Cook Faster and More Efficiently Than Ever Before

  • Fight Cravings for Junk Food and Build Healthy Habits

  • Achieve Lasting Success Beyond These Next 8 Weeks

How It Works: An All-New Learning Platform

So – we know that the goal of this course is to help you look & feel better than ever by eating a healthy, unprocessed diet... but how does that work?

Creating a program that could actually deliver on this promise required a whole new way of thinking.

Instead of just giving you recipes to make, a book to read, or videos to watch, this course uses a unique platform that blends all those aspects into one fun, easy-to-follow website. It's an amazing learning tool and I think you're going to love it.

Here's a quick video that explains how it works:

A Quick Tour Inside The Course

The course is built around 8 lessons which are delivered across 8 weeks. Each of these lessons is packed with resources – lesson documents, videos, recipes, assignments, and downloadable extras – all designed to help you take action, build healthy habits, and get results.

Once you login to the course, you'll find that each lesson is presented on one easy-to-follow webpage where you have easy access to all the content for that week. Here's an example of what the first lesson (The Dabble Week) looks like:


What Current Students Have to Say...

I discovered the One Ingredient Chef website about two years ago. I was immediately hooked. The philosophy resonated with me. Andrew's passion to help others eat better/live better is evident in everything that he does. His recipes are delicious and easy to follow. His new course moves you gradually in the direction of incorporating more plant based one ingredient foods into your diet on a daily basis. By the end of the course you will be eating healthier and feeling better all while eating food that tastes amazing!

Becca P.
Becca P.

This course is a great way to get yourself into the One Ingredient lifestyle. Andrew's passion for helping others to have a better life through One Ingredient eating shows in everything he does. He is very helpful when it comes to helping others achieve their healthy eating transformation. The course is easy to navigate and really helps you to be successful in sticking with it. The recipes are delicious and simple to make. I cannot stop telling people around me about how amazing this is.

Rosanne F.
Rosanne F.

The One Ingredient philosophy has completely changed how I look at food, I’m eating and feeling better than ever! The eight week One Ingredient Course will help you successfully and easily transition to a One Ingredient Diet. With its fantastic guidance and support, the transition will happen seamlessly without the stress of going it alone. Give the One Ingredient Diet a chance, you won’t regret it! Like me, you can be healthier and happier!

- Alison A.

I first stumbled upon Andrew's One Ingredient philosophy about a year ago and I have found it to be a huge help in transitioning to a completely unprocessed diet. His recipes are great - my husband loves them so much he doesn't complain about the lack of meat at dinner any more which is a huge step for him (and a huge help for me) 🙂 The new course is great. Andrew's week by week guidance and laid-back approach eases you into the new lifestyle and provides heaps of helpful tips and hints along the way. The support offered through the use of the 'one ingredient community' is great and ensures you have the help you need to succeed on your journey.

- Donna M.
- Donna M.

The Most Affordable Healthy Eating Program

As you are starting to see, the One Ingredient Transformation Course is packed with action-oriented resources that can help you achieve optimal health. The best part is that, with the help of technology, this program can be delivered directly to you in a way that has never been done before.

In the past, if you wanted structured, hands-on guidance with healthy eating, your best bet was to take a $5,000+ retreat with one of the "gurus" in this industry.

Even then, you were mostly on your own. Anyone can follow along in the secluded retreat center with a gourmet chef and a strong support system... but what happens when you get back home? How can you make these healthy habits stick with a full-time job and hungry kids?

These are problems that the One Ingredient Transformation Course was designed to address from the very beginning – it’s a program that takes 8 weeks to build a foundation for ongoing success (including lifetime access to the community to keep you on track long after the course is over).

This is the most complete, step-by-step system for achieving lasting success with healthy eating, but it is also the most affordable... In fact, the entire course is priced lower than a decent food processor. It has never been this easy or this affordable to kickstart your new unprocessed lifestyle.

In addition, I want you to feel confident that this plan can work for you, so I’m giving you 100% risk-free access to the entire course:

8-Week 100% Money Back Guarantee

I believe in the quality of this material and I’ll stand behind it. Included with your purchase is a 100% Money Back Guarantee for the entire 8 weeks. This means you can go through the entire One Ingredient Transformation Course completely risk free. If you are unsatisfied for any reason, I’ll gladly refund your entire purchase price – no questions asked.

The One Ingredient Transformation Course –
8 Weeks To The Healthiest You


Join Today & Get Instant Access:

  • 8 Core Lessons (one lesson delivered over each of the next eight weeks)
  • Over 120 pages of lesson material, teaching you the fundamentals of this unprocessed eating plan
  • 10+ coaching videos that guide you through the program
  • Over 65 easy & delicious recipes (about 8 per week) that fit into each week's theme
  • Helpful assignments to put what you're learning into practice
  • Membership to the private One Ingredient community message board
  • LIFETIME access to everything above

Registration Now Open: $197 $97

Join the Program

Includes 100% Money-Back Guarantee

Frequently Asked Questions

  • q-iconI Can't Wait to Join! What Happens After I Purchase?

    Once you click the giant orange button to purchase, you’ll be able to choose your username and password. After that, you can login to the secure course website ( and begin Week One immediately. Don’t worry, these instructions will be emailed to you as well.

  • q-iconWhat If I Go on Vacation or Fall Behind – Can I Catch Up Later?

    Absolutely. Once each new week is unlocked, you have lifetime access to all the material. You can catch up at a later date if you miss a week, or go back through the material for a refresher anytime. It’s always there.

  • q-iconThis Program is "Plant Based" - What Does That Mean?

    One Ingredient is a plant-based eating program (meaning no meat, fish, eggs, or dairy) which is a huge part of eating a healthier, cleaner, and more unprocessed diet. Over the first few weeks, the course will show you how to drop these foods (if needed) and thrive on plants.

  • q-iconCan I Take This Course on My Tablet or Mobile Device?

    Yes! All the content inside this course has been carefully optimized to display nicely in all popular web browsers. It works great on iPhones, iPads, Macs, PCs, and even Android devices.

  • q-iconHow Does the Money-Back Guarantee Work?

    I want you to be satisfied with your purchase and feel confident that this program is right for you. I believe you’ll find the material incredibly valuable, but if not, you can use the support form inside the course to request a full, 100% refund anytime within 8 weeks of your purchase. No questions asked.

  • q-iconThe 'Community' Sounds Cool... Will You Be There to Answer My Questions?

    Yes! The community is one of the most valuable parts of this course because it gives you ongoing support from myself and other students. This is the place where you can ask questions, get clarifications, and stay on track in a way that’s just not possible with other systems.

  • q-iconI'm Really Busy… How Much Time Will It Take Me to Do This?

    There’s a ton of material in this program, but it’s designed to be absorbed in weekly bite-sized chunks. Moving through the lesson material shouldn’t take more than 1-2 hours per week and the assignments + cooking time may take between 1-4 hours. In total, it’s a small time investment to setup a whole new lifestyle around healthy eating.

  • q-iconMy Question Isn't Covered Here, How Can I Get In Touch?

    If you have any questions about this program, I’m more than happy to talk directly with you. Simply click here to visit the support page and I’ll get back to you promptly (usually within 1 business day).

Registration Now Open: $197 $97

Join the Program

Includes 100% Money-Back Guarantee