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Vitamin D untuk Upper Respiratory Tract Infections

A

Lancet 2025 meta-analysis shows vitamin D supplementation may help protect against acute respiratory infections, with strongest effects in individuals with baseline 25(OH)D levels below 25 nmol/L. Optimal protective dosing appears to be 400-1,200 IU/day rather than intermittent bolus dosing.

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Kesimpulan

Lancet 2025 meta-analysis shows vitamin D supplementation may help protect against acute respiratory infections, with strongest effects in individuals with baseline 25(OH)D levels below 25 nmol/L. Optimal protective dosing appears to be 400-1,200 IU/day rather than intermittent bolus dosing.

Key Study Findings

Review
UCI Sports Nutrition Project: The Role of Nutrition in the Prevention and Management of Illnesses …
Dose: None vs: None Outcome: None Efek: None None

Populasi: Elite/professional cyclists nutrition review

Systematic Review
Interventions for preventing the progression of autosomal dominant polycystic kidney disease.
Dose: Disease-modifying agents (tolvaptan, etc.) vs: Placebo or standard care Outcome: Kidney disease progression Efek: None None

Populasi: Patients with ADPKD

Review
Nutraceuticals and pharmacological to balance the transitional microbiome to extend immunity during COVID-19 and other …
Dose: Probiotics, nutraceuticals vs: None Outcome: Immune response modulation in COVID-19 Efek: None None

Populasi: COVID-19 patients with gut dysbiosis

Review
Revisiting Vitamin D Guidelines: A Critical Appraisal of the Literature.
Dose: 600-800 IU (DRI) or higher vs: None Outcome: Skeletal and extra-skeletal health benefits Efek: None None

Populasi: General population (guideline comparison)

Meta-Analysis n=5748
High-dose oral vitamin D supplementation for prevention of infections in children aged 0 to 59 …
Dose: 400 IU vs: Placebo Outcome: None Efek: None None

Populasi: Healthy adults

Case-Control 26.0 weeks
Vitamin D - An Elixir for Recurrent Upper Respiratory Tract Infection.
Dose: 98% vs: control Outcome: None Efek: None None

Populasi: None

Key Statistics

40

Studi

30000

Peserta

Positive

A

Peringkat

Referenced Papers

Dermatologic therapy 2022 42 sitasi
International journal of … 2018 165 sitasi
European journal of … 2016 93 sitasi
Indian journal of … 2013 24 sitasi
Acta scientiarum polonorum. … 2012 11 sitasi
International journal of … 2011 49 sitasi
Diseases of the … 2001 7 sitasi

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosis yang Umum Digunakan

general:
600-800 IU/day
immunesupport:
1,000-2,000 IU/day
deficiencycorrection:
4,000-5,000 IU/day (under medical supervision)

Batas atas: 4,000 IU/day (100 mcg)

Dosis yang Diteliti dalam Penelitian

Dosis Durasi Efek N
None -- Mixed --
Disease-modifying agents (tolvaptan, etc.) -- Positive --
Probiotics, nutraceuticals -- Positive --
600-800 IU (DRI) or higher -- Positive --
400 IU -- Negative 5748
98% 26.0 weeks Mixed --
None -- Positive --
None -- Positive 50554

Waktu terbaik diminum: With a meal containing fat for better absorption

Safety & Side Effects

Efek Samping yang Dilaporkan

  • Hypercalcemia at very high doses (nausea, vomiting, weakness)
  • Kidney stones with excessive long-term use
  • Constipation
  • Metallic taste

Interaksi yang Diketahui

  • Thiazide diuretics (may increase risk of hypercalcemia)
  • Corticosteroids (reduce vitamin D absorption and metabolism)
  • Orlistat and cholestyramine (reduce fat-soluble vitamin absorption)
  • Statins (vitamin D may affect statin metabolism)

Asupan atas yang dapat ditoleransi: 4,000 IU/day (100 mcg)

Selalu konsultasikan dengan tenaga kesehatan Anda sebelum memulai suplemen apa pun.Selalu konsultasikan dengan penyedia layanan kesehatan Anda sebelum memulai suplemen apa pun.

Frequently Asked Questions

Does Vitamin D help with Upper Respiratory Tract Infections?
Based on 40 studies with 30,000 participants, there is strong evidence from multiple clinical trials that Vitamin D may support Upper Respiratory Tract Infections management. Our evidence grade is A (Strong Evidence).
How much Vitamin D should I take for Upper Respiratory Tract Infections?
Studies have used various dosages. A commonly studied range is 600-800 IU/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Vitamin D?
Reported side effects may include Hypercalcemia at very high doses (nausea, vomiting, weakness), Kidney stones with excessive long-term use, Constipation, Metallic taste. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Vitamin D and Upper Respiratory Tract Infections?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 40 peer-reviewed studies with 30,000 total participants. The overall direction of effect is positive.

Related Evidence

Penafian FDA: Pernyataan-pernyataan ini belum dievaluasi oleh Food and Drug Administration. Produk dan informasi di situs web ini tidak dimaksudkan untuk mendiagnosis, mengobati, menyembuhkan, atau mencegah penyakit apa pun. Peringkat bukti yang disajikan didasarkan pada analisis kami terhadap penelitian yang ditinjau sejawat dan tidak merupakan saran medis. Selalu konsultasikan dengan penyedia layanan kesehatan Anda sebelum memulai regimen suplemen apa pun.