KDP categories · Top KDP authors
Respiratory (Diseases & Physical Ailments, Books): Amazon KDP category data
Amazon Books Best Sellers data for Respiratory (Diseases & Physical Ailments, Books), updated Nov 3, 2026: median price $14.99, median 22 reviews, average rating 4.5 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $9.99 – $19.83 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Diseases & Physical Ailments (2,378), one of the easier corners under it.
- The same niche in Kindle eBooks scores 19, 10 points lower than here.
- 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 Respiratory best sellers
-
The Ancient Herbalist & Healer Natural Remedies. 4 Books in 1 The Mega Apothecary Encyclopedia: 500+ Remedies for Daily Wellness, Beauty, Hormonal ... Home, Inspired by Natural Health Teachings
by Tamsin Meadowcroft
- List rank#1
- Price$50
- Rating4.6
- Reviews2,275
-
Break the Mold: 5 Tools to Conquer Mold and Take Back Your Health
by Crista Dr
- List rank#2
- Price$18.34
- Rating4.8
- Reviews669
-
The Complete Home Apothecary Book: 401 Easy, Step-by-Step Herbal Remedies and Powerful Blends to Relieve Pain, Boost Immunity, Improve Sleep, and Restore Balance Naturally
by Ava Green
- List rank#3
- Price$24.16
- Rating4.3
- Reviews1,219
-
The Easy Acid Reflux Cookbook: Comforting 30-Minute Recipes to Soothe GERD & LPR
by Karen Frazier
- List rank#4
- Price$11.27
- Rating4.3
- Reviews1,525
-
The Complete Survival Home Apothecary All-in-1: Master 600+ Herbal Remedies, Foraging Skills & Natural Recipes to Boost Health, Build Resilience & Protect Your Family in Any Emergency (Herbs)
- List rank#5
- Price$24.99
- Rating4.7
- Reviews1,031
-
First Aid Pocket Guide - Revision 2026: A Compact Step-by-Step Manual for All Outdoor and Medical Emergencies — Plus a Complete First Aid Kit Guide
by Dennis H. Nelson
- List rank#6
- Price$9.99
- Rating3.8
- Reviews15
-
The Chronic Cough Enigma: How to recognize neurogenic and reflux related cough
by Jamie A. Koufman M.D. F.A.C.S.
- List rank#7
- Price$12.68
- Rating4.5
- Reviews1,251
-
How I Cured My Silent Reflux: The Counterintuitive Path to Healing Acid Reflux, GERD, and Silent Reflux (LPR)
by Don Daniels
- List rank#8
- Price$8.57
- Rating4.4
- Reviews227
-
Body by Breath: The Science and Practice of Physical and Emotional Resilience
by Jill Miller
- List rank#9
- Price$50.57
- Rating4.8
- Reviews214
-
Sleep Apnea Solution: Less Snoring, Less CPAP, Just Sleep
by Dylan Petkus MD
- List rank#10
- Price$11.58
- Rating4.6
- Reviews227
Same niche in Kindle eBooks: Respiratory
FAQ
Is Respiratory a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 22 reviews and sells for $14.99.
How many reviews do you need to rank in Respiratory?
The median best seller has 22 reviews, and 63% of them have fewer than 100.
What do Respiratory best sellers cost?
The median price is $14.99; half of the best sellers are priced between $9.99 and $19.83.
Can new books break into Respiratory?
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.