KDP categories · Top KDP authors
Fiber: Amazon KDP category data
Amazon Books Best Sellers data for Fiber, updated Nov 2, 2026: median price $15.99, median 117 reviews, average rating 4.5 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $20.17 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 19% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 7% of the parent category Nutrition (1,794), one of the easier corners under it.
- 19% of its best sellers came out in the last 90 days, more than in 89% of Books categories: readers here keep buying new titles.
Top 10 Fiber best sellers
-
Greek Out: Sunny Vibes, High-Energy Mediterranean Flavor
by Maria Koutsogiannis
- List rank#1
- Price$36.96
- Rating4.8
- Reviews187
-
The Protein Meal Prep Plan: 30 Weekly Plans + 180 Recipes to Eat Better, Stress Less, and Save Money (Packed with Fiber and 35g+ Protein Per Serving)
- List rank#2
- Price$30.69
- Rating4.7
- Reviews143
-
Plant Powered Plus: Activate the Power of Your Gut to Tame Inflammation and Reclaim Your Health
- List rank#3
- Price$16.15
- Rating4.6
- Reviews435
-
Fiber Fueled: The Plant-Based Gut Health Program for Losing Weight, Restoring Your Health, andOptimizing Your Microbiome
- List rank#4
- Price$13.20
- Rating4.7
- Reviews7,303
-
The Bean Book: 100 Recipes for Cooking with All Kinds of Beans, from the Rancho Gordo Kitchen [A Cookbook]
by Steve Sando
- List rank#5
- Price$20.36
- Rating4.8
- Reviews508
-
The Food Counter's Pocket Companion, Sixth Edition: Calories, Carbohydrates, Protein, Fats, Fiber, Sugar, Sodium, Iron, Calcium, Potassium, and Vitamin D―with 32 Restaurant Chains
by Jane Stephenson RDN CDE
- List rank#6
- Price$8.32
- Rating4.3
- Reviews1,322
-
Your GLP-1 Game Plan: What Your Doctor Didn’t Tell You About How to Eat, Move, and Thrive on Weight Loss Medications―With 50 Easy, Nutritious Recipes
by Heidi Skolnik MS CDN FACSM
- List rank#7
- Price$25.74
- Rating4.6
- Reviews63
-
So Easy So Good: Delicious Recipes and Expert Tips for Balanced Eating (A Cookbook)
by Kylie Sakaida
- List rank#8
- Price$16.19
- Rating4.8
- Reviews1,076
-
The Ambitious Kitchen Cookbook: 125 Ridiculously Good for You, Sometimes Indulgent, and Absolutely Never Boring Recipes for Every Meal of the Day
by Monique Volz
- List rank#9
- Price$14.56
- Rating4.8
- Reviews1,002
-
The Fiber Fueled Cookbook: Inspiring Plant-Based Recipes to Turbocharge Your Health
- List rank#10
- Price$17.60
- Rating4.7
- Reviews2,760
FAQ
Is Fiber a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 117 reviews and sells for $15.99.
How many reviews do you need to rank in Fiber?
The median best seller has 117 reviews, and 48% of them have fewer than 100.
What do Fiber best sellers cost?
The median price is $15.99; half of the best sellers are priced between $12.99 and $20.17.
Can new books break into Fiber?
19% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.