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Physiology (Basic Science, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Physiology (Basic Science, Kindle eBooks), updated Nov 2, 2026: median price $11.99, median 90 reviews, average rating 4.5 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $7.99 – $19.99 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 9% of the parent category Basic Science (1,000), one of the easier corners under it.
- At $11.99 its median price beats 93% of Kindle eBooks categories, leaving more margin per copy.
- Prices spread wide: the middle half runs from $7.99 to $19.99, so budget editions and premium or boxed sets sell side by side.
Top 10 Physiology best sellers
-
Why Feet Smell and Other Gross Facts about Your Body (Gross Me Out)
by Jody Sullivan Rake
- List rank#1
- Price$10.99
- Rating4.3
- Reviews9
-
Endure: Mind, Body, and the Curiously Elastic Limits of Human Performance – A Bestselling Sports Medicine and Exercise Physiology Guide
by Alex Hutchinson
- List rank#2
- Price$13.49
- Rating4.5
- Reviews4,527
-
The Body Electric: Electromagnetism and the Foundation of Life
- List rank#3
- Price$12.99
- Rating4.6
- Reviews1,571
-
Human Errors: A Panorama of Our Glitches, from Pointless Bones to Broken Genes
by Nathan H. Lents
- List rank#4
- Price$9.80
- Rating4.4
- Reviews1,239
-
Body by Darwin: How Evolution Shapes Our Health and Transforms Medicine
by Jeremy Taylor
- List rank#5
- Price$19.99
- Rating4.3
- Reviews70
-
As Nature Made Him: The Boy Who Was Raised as a Girl – The Riveting New York Times Bestseller About Medical Arrogance and Personal Triumph
by John Colapinto
- List rank#6
- Price$7.99
- Rating4.6
- Reviews933
-
The Vagus Nerve Healing Guide: Reduce Stress, Sleep Deeper, and Regain Control of Your Nervous System with Simple, Proven Vagus Nerve Techniques
by Douglas Clement
- List rank#7
- Price$0.99
- Rating4.9
- Reviews11
-
Goodbye Autoimmune Disease: How to Prevent and Reverse Chronic Illness and Inflammatory Symptoms Using Supermarket Foods (Goodbye Lupus Book 2)
by Brooke Goldner
- List rank#8
- Price$9.99
- Rating4.4
- Reviews1,846
-
First Steps: How Upright Walking Made Us Human
by Jeremy DeSilva
- List rank#9
- Price$3.99
- Rating4.6
- Reviews539
-
Sugar Crush: How to Reduce Inflammation, Reverse Nerve Damage, and Reclaim Good Health
by Richard P. Jacoby
- List rank#10
- Price$11.71
- Rating4.4
- Reviews993
Same niche in Books: Physiology
FAQ
Is Physiology a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 90 reviews and sells for $11.99.
How many reviews do you need to rank in Physiology?
The median best seller has 90 reviews, and 53% of them have fewer than 100.
What do Physiology best sellers cost?
The median price is $11.99; half of the best sellers are priced between $7.99 and $19.99.
Can new books break into Physiology?
8% 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.