KDP categories · Top KDP authors
Nephrology (Internal Medicine, Books): Amazon KDP category data
Amazon Books Best Sellers data for Nephrology (Internal Medicine, Books), updated Nov 3, 2026: median price $17.99, median 22 reviews, average rating 4.4 and a KDPTop opportunity score of 36/100 (highly competitive).
| Price range (middle 50%) | $13.98 – $24.10 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Internal Medicine (2,081), one of the easier corners under it.
- Its review barrier is lower than in 72% of Books categories: the median best seller has only 22 reviews, so new books can chart with few.
Top 10 Nephrology best sellers
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Stopping Kidney Disease Food Guide: A recipe, nutrition and meal planning guide to treat the factors driving the progression of incurable kidney disease
by Lee Hull
- List rank#1
- Price$10.49
- Rating4.3
- Reviews2,751
-
The Easiest Stage 3 Kidney Disease Diet Cookbook for Seniors: 100+ Quick & Tasty Renal Recipes in Full Color to Support CKD and Boost Energy, To End Boredom & Bring Clarity | With 28-Day Meal Plan
by Henry Martin
- List rank#2
- Price$19.99
- Rating4.4
- Reviews191
-
The Kidney Disease Food List Bible: The Instructions You Never Got — A Clear Grocery Guide for the Renal Diet with 300+ Foods to Make Safe Food Choices Based on Your Labs
by Henry Martin
- List rank#3
- Price$19.99
- Rating4.6
- Reviews115
-
The 30-Minute Kidney Disease Diet Cookbook for Stage 3 and 4: 120+ Quick and Tasty Renal Recipes, with a Stress-Free 28-Day Meal Plan and Clear Guidance to Manage CKD with Confidence
by Henry Martin
- List rank#4
- Price$22.99
- Rating4.6
- Reviews85
-
Renal Diet Cookbook for the Newly Diagnosed: The Complete Guide to Managing Kidney Disease and Avoiding Dialysis
by Susan Zogheib MHS RD LDN
- List rank#5
- Price$11.63
- Rating4.4
- Reviews2,919
-
The Newly Diagnosed Stage 4 Kidney Disease Diet Cookbook for Seniors: 150+ Delicious Low Sodium, Low Potassium, and Low Phosphorus Recipes with Perfectly Portioned 30-Day Meal Plan
by Quinn Matthews
- List rank#6
- Price$23.99
- Rating4.7
- Reviews151
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The 5 Ingredient Stage 4 Kidney Disease Diet Cookbook for Seniors: 120+ Tasty Renal Recipes in Full Color to Manage CKD, End Confusion & Boredom, and Enjoy Real Food with Confidence Again
by Henry Martin
- List rank#7
- Price$22.99
- Rating4.4
- Reviews207
-
Stopping Kidney Disease Basics: Learn how to expertly manage and slow kidney disease progression in less than two hours
by Lee Hull
- List rank#8
- Price$7.99
- Rating4.3
- Reviews497
-
Renal Diet Cookbook: The Low Sodium, Low Potassium, Healthy Kidney Cookbook
by Susan Zogheib MHS RD LDN
- List rank#9
- Price$12.15
- Rating4.4
- Reviews3,162
-
LEARN the FACTS ABOUT KIDNEY DISEASE: A Self-Help Guide to Better Kidney Health With Proven Therapies
by STEVEN ROSANSKY M.D.
- List rank#10
- Price$16.47
- Rating4.6
- Reviews990
FAQ
Is Nephrology a good niche for Amazon KDP?
Its KDPTop opportunity score is 36/100, which makes it highly competitive. The median best seller has 22 reviews and sells for $17.99.
How many reviews do you need to rank in Nephrology?
The median best seller has 22 reviews, and 73% of them have fewer than 100.
What do Nephrology best sellers cost?
The median price is $17.99; half of the best sellers are priced between $13.98 and $24.10.
Can new books break into Nephrology?
12% 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.