PlainPill

Cold Showers vs NAC for immunity

Short answer: For immunity, users rate them about the same: 100% report improvement with Cold Showers (7 reports) and 97% with NAC (34 reports).

NAC has 387 meta-analyses and 767 randomized trials on PubMed; the other has not been graded.

Based on 103 reports about Cold Showers and 1,645 about NAC. Not medical advice.

Cold Showers
Lifestyle
NAC
Supplement
User score4049
Verdict
Mostly positive
Mixed
Positive
of reports that state an outcome
83%55%
Reports1031,645
ResearchResearch pendingAResearch: Strong
Meta-analyses / RCTs—387 / 767
Mainly used for
Weight loss
% reporting improvement
100% (2)75% (4)
Appetite
% reporting improvement
—90% (31)
Focus
% reporting improvement
100% (6)82% (156)
Energy
% reporting improvement
100% (10)74% (78)
Sleep
% reporting improvement
100% (4)71% (41)
Anxiety
% reporting improvement
100% (6)90% (259)
Mood
% reporting improvement
100% (13)65% (274)
Memory
% reporting improvement
—79% (14)
Performance
% reporting improvement
—75% (8)
Recovery
% reporting improvement
—86% (14)
Pain & inflammation
% reporting improvement
—86% (28)
Digestion
% reporting improvement
—72% (18)
Libido
% reporting improvement
—29% (7)
Hormones
% reporting improvement
—88% (8)
Blood sugar
% reporting improvement
—100% (3)
Heart & lipids
% reporting improvement
100% (2)67% (12)
Skin & hair
% reporting improvement
100% (4)89% (18)
Immunity
% reporting improvement
100% (7)97% (34)
Longevity
% reporting improvement
—100% (7)
Common side effectsdepression, discomfortanhedonia, fatigue, stomach issues, depression
Typical dose reportednightly and morningas needed
Cold Showers
What a user said
“I take a cold shower for as cold as I can get it every night before bed. I sleep like a baby.”
Full Cold Showers profile →
NAC
Latest review conclusion

Taken together, these preliminary findings suggest that dietetic approaches might be included as part of BD treatment. Also considering the high risk of metabolic disorders in individuals with BD, they should be encouraged to choose healthy dietary lifestyles, including daily intake of fruits, vegetables, seafood and whole grains.

Nutr Neurosci, 2023 ↗
What a user said
“NAC has helped me stay calm and reduce anxiety as well as gives me loads of energy if I am sleep deprived.”
Full NAC profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate