B
Evidence Grade B
Graded
under review
Safe to Cite
Current
27%
27% -- sales increase from descriptive labels for restaurant menus (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
27%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
benguttmann.com
Primary
Tier C
https://www.benguttmann.com/blog/chatgpt-is-full-of-hot-air ↗
Source Article
ChatGPT is full of hot air
Original Research
benguttmann.com
· Original study ↗
Methodology
Cited as 'some studies' in blog post; original study not named
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
restaurant menus: 27% sales increase from descriptive labels. Source: benguttmann.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/descriptive-menu-labels-sales-increase-27
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<blockquote cite="https://lighthousedata.io/data/descriptive-menu-labels-sales-increase-27" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>27%</strong> -- sales increase from descriptive labels for restaurant menus<br><small>Source: benguttmann.com (2026) · <a href="https://lighthousedata.io/data/descriptive-menu-labels-sales-increase-27" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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