F-Factor Diet Review

Product Evaluation

5 out of 10

People Who Viewed F-Factor Diet Also Viewed PS1000 Plan.

F-Factor Diet ReviewThe F-Factor Diet is a four-week program that focuses on fiber, which is what the F in F-Factor stands for. Designed by nutritionist Tanya Zuckerbrot over the span of ten years, the program is broken up into three steps, with the first step lasting two weeks and the other two steps lasting one week each. According to Zuckerbrot, fiber being added to a person’s diet will help them feel more full throughout the day. As an added bonus, she contends that fiber improves energy levels, lowers cholesterol, and can even reduce the risk of some diseases. The F-Factor Diet is also billed as a diet for life, as opposed to a fad diet.

Do Dieters Lose Weight On The F-Factor Diet?

Dieters on the F-Factor Diet can lose weight in the short term.* This will likely be due to the fact that adding an abundance of fiber can help a dieter feel fuller, but will also help a dieter to move their bowels more freely. However, this type of weight loss will be minimal and short lived unless the dieter takes it upon themselves to add in proper nutrition and exercise on a daily basis.

“I have read through this book and think there are good points and bad points. First of all, the bad. I think that this book is highly misleading. She states a lot of times in the beginning that it is not a low carb diet and she will not be taking away your carbs, but in the first stage, she takes away almost 100% of your carbs, leaving you with only high fiber cereal, very specific crackers that are very high fiber w/o carbs and a single piece of fruit. In addition, she does not let you have yogurt or milk the first phase. Like all the other low carb diets, you are allowed as much meat and veggies as you want. Additionally, if you remain on this diet the rest of your life, you are forever counting and limiting your carbs to a total of 75 a day. Granted that is a lot more than some low carb diets, but still, a limit nonetheless.

Also I was very disappointed in her fiber suggestions. You’d think that since this book is about fiber, she would tell you all about how to get it in your diet. She does not. She dedicates a few pages in the beginning with a limited list of the fibers in various foods. In the recipe section, you would expect her to have loads of recipes with extremely high fiber counts. There are not. Most of the recipes have only 5 g of fiber or less per serving. There are lots of other cookbooks out there about healthy eating that have a lot more fiber in them than she gives you. Finally, the only way you actually get fiber on her diet is to eat high fiber cereal. She says she wants you eating 30-35 g of fiber a day. She starts off saying most people get 9-11 g a day. Here’s her breakdown. At some point in the day, have a serving of the high fiber cereal: 13 g of fiber. Have up to 8 of her high fiber crackers that have 3 g in each cracker. Let’s say you are moderate and have 4 crackers a day: 12 g of fiber. That totals 25 g of fiber. Minus that from the higher number you are supposed to have each day (35 g) and you are left w/ 10 g of fiber to get from your diet, which is exactly what you were getting before starting this “diet”. She could have summed up the book in a few sentences: Eat high fiber cereal for breakfast and 2 or 3x a day have a high fiber cracker or 2 and you’ll get the fiber you need. She really never goes into detail on how to get more fiber through whole foods in your diet. The one good thing about this book is the recipes. They look fantastic! There are a lot of veggies in almost every recipe and they are very unique-I haven’t really seen these ideas before. So for me, the book was worth it for the recipes but for the actual “diet” it’s basically a complete scam.” April E. Gap

Is The F-Factor Diet Easy To Follow?

The F-Factor Diet is not hard to follow. The book is laid out so that dieters can ease into the introduction of fiber, and it does do a good job of offering alternative snacks and foods that are rich in fiber. The theory of the diet itself is somewhat easy to follow, but the calculating is what is difficult to follow for most reading the book.  However, where the diet gets difficult is in the area of fitness. There is no guidance offered in the F-Factor Diet book, which means it really only covers half of the equation of weight loss. Like all good diet programs, it should be paired with an exercise program in order to be an effective solution for long-term weight loss. Many also said the program itself is just not sustainable for the long term which does not have me surprised. There have not been any real noted side effects when following this diet plan other than the recipes really not tasting good at all.


The F-Factor Diet book does ring true in many senses. Consuming more fiber will help you feel fuller to a certain extent, and it is a good idea to be on a diet that includes a fair amount of fiber. However, at $15 for the book, you are really getting little more than suggestions on ways to incorporate fiber into your daily diet. If more fiber is what you are after, you can simply buy a powder fiber supplement from your local grocery store and enjoy the same fullness benefit offered by the alternative foods in the F-Factor Diet book.* In addition, the program only covers diet, and markets itself as a permanent weight loss solution that we all know is false. While this is important for weight loss, you will be better off finding a program that offers both diet and exercise guidance so you can maximize your efforts.

*Please keep in mind that with any diet or weight loss program, individual results will vary.


  1. The F-Factor Diet. Amazon Diet Books. Web

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*Individual results will vary.

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