Nicotine and Vitamin C, a caution.
Nicotine and smoking markedly increase oxidative stress and lower plasma vitamin C levels, so nicotine users often have depleted vitamin C status.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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What the row says.
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At a glance
- Pair type
- Caution
- Evidence (highest tier)
- Moderate
- Source citations
- 2 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Supplement
- Last verified
- May 30, 2026
Caution · Moderate evidence
Caution
What is happening. Nicotine and smoking markedly increase oxidative stress and lower plasma vitamin C levels, so nicotine users often have depleted vitamin C status.
Mechanism. Nicotine and tobacco smoke generate reactive oxygen species and increase metabolic turnover of ascorbate, lowering circulating and tissue vitamin C concentrations.
Recommendation. Do not use nicotine. For those who do, vitamin C stores are likely depleted, but supplementation does not offset nicotine's harms; addressing nicotine use itself is the priority.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Nicotine and Vitamin C are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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