Nutrition — Kindle Category Opportunity
Competition snapshot for the Health, Fitness & Dieting best-seller list, ease-of-entry score 45.0/100.
Category metrics
Score
45.0
Median reviews
787.5
Weak share (top 20)
30%
Median price
$9.99
Median star rating
4.6
Books scanned
50
Worth writing in?
The Nutrition list shows real reader demand with room left for newcomers: the median book carries 787.5 reviews, yet 30% of the top 20 still sit under 100 reviews. 0 top-15 books hold fewer than 100 reviews at $0.99–4.99 — classic self-publishing breakout books. Ease-of-entry score 45.0/100.
Breakout books — top 15, under 100 reviews, $0.99–4.99
Best-seller list on AmazonNo breakout books in this category.
High-frequency phrases in this category's titles
Mine all categoriesHigh-frequency phrases mined from the 50 best-seller titles on this category's list. The ease-of-entry score tells you how winnable the category is; these title phrases tell you which words readers search with — use the two layers together. Frequency is a title statistic, not a search-volume estimate.
| Phrase | Titles | Rank-weighted score |
|---|---|---|
| new science | 4 | 140 |
| anti inflammatory | 3 | 99 |
| weight loss | 3 | 90 |
| reverse disease | 3 | 72 |
| restore energy with simple | 2 | 70 |
| overall health | 2 | 64 |
| eat to beat | 3 | 57 |
| anti inflammatory diet | 2 | 57 |
| ultra processed food | 2 | 56 |
| discover the foods scientifically | 2 | 53 |
| foods scientifically proven | 2 | 53 |
| guide to using | 2 | 53 |
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More Health, Fitness & Dieting categories
4 subcategories under this category
| Subcategory | Score | Median reviews |
|---|---|---|
| █████ | 72.5 | 16.5 |
| █████ | 68.5 | 54 |
| █████ | 66.0 | 34.5 |
| █████ | 57.5 | 99.5 |
Subcategory names are visible after sign-in — a free account unlocks every subcategory score.
Sign up free to unlockCheck the keywords before you write
Category scores show where entry is easiest; keyword lookups show whether readers actually reach for it. A free account includes keyword competition lookups plus unlimited category scans.
After you publish: why aren't readers buying?
Category research picks the direction; review diagnosis reads the readers. The same platform clusters a book's critical reviews into severity-ranked root causes, each anchored to verbatim quotes — see it applied to a full narrative-history title.
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Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.