Real ChatGPT answer · index seedGsumaTNvE70completeHealth and wellness · supplements and vitaminsinformational

Why does a lack of vitamin D3 cause severe seasonal depression and sluggishness during winter months?

ChatGPTgpt-62 queries10/31/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
Why does a lack of vitamin D3 cause severe seasonal depression and sluggishness during winter months?
2 real searches · 1 real-search pass
vitamin D deficiency seasonal affective disorder evidence winter depression sunlight circadian rhythm clinical guidelinesGoogle ↗
OBSERVED
NIH vitamin D fact sheet deficiency symptoms fatigue depression supplementation upper limit adultsGoogle ↗
OBSERVED

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

Classifying 2 queries…

Searches and sources

ChatGPT2 real searches · gpt-6
vitamin D deficiency seasonal affective disorder evidence winter depression sunlight circadian rhythm clinical guidelines Google ↗
NIH vitamin D fact sheet deficiency symptoms fatigue depression supplementation upper limit adults Google ↗

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
vitamin D deficiency seasonal affective disorder evidence winter depression sunlight circadian rhythm clinical guidelines
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1
NIH vitamin D fact sheet deficiency symptoms fatigue depression supplementation upper limit adults
OBSERVED
Google ↗
AI Mode ↗
————1x
of 1