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Omega-3 Fatty Acids para UV Protection (Internal Photoprotection)

B Evidências Pelo menos um ensaio aleatorizado apoia esta conclusão, com resultados maioritariamente consistentes.

Research suggests omega-3 supplementation may increase the skin's minimal erythema dose (MED), potentially providing a modest photoprotective effect through anti-inflammatory mechanisms.

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B

Conclusão

Research suggests omega-3 supplementation may increase the skin's minimal erythema dose (MED), potentially providing a modest photoprotective effect through anti-inflammatory mechanisms.

Key Study Findings

Review
Medical Nutrition Therapy in Dermatological Diseases: A Joint Consensus Statement of the Italian Association of …
Dose: None vs: None Outcome: None Efeito: None None

População: Patients with acne, HS, or psoriasis

Review
Dietary Bioactive Compounds and Their Role in Allergy Prevention: A Comprehensive Review.
Dose: None vs: None Outcome: None Efeito: None None

População: None

Review
Naturally derived bioactive compounds as precision modulators of immune and inflammatory mechanisms in psoriatic conditions.
Dose: None vs: None Outcome: None Efeito: None None

População: review of naturally derived bioactive compounds for psoriasis (flavonoids, terpenoids, omega-3, alkaloids)

Randomized Controlled Trial 12 weeks Open-label
Nutritional effect on lipoproteins and their subfractions in patients with Psoriatic Arthritis: a 12-week randomized …
Dose: Mediterranean diet vs: Standard diet Outcome: HDL/LDL subfractions and metabolic syndrome Efeito: None None

População: Patients with psoriatic arthritis

narrative_review
Nutrition and skin: Kids are not just little people.
Dose: None vs: Placebo Efeito: narrative review; discusses role of nutrition from prenatal period on skin immune responses; highlig not_applicable
Other
In vivo response of GsdmA3(Dfl)/+ mice to topically applied fish oil - effects on cellular …
Dose: 100 mg vs: control Outcome: None Efeito: None None

População: psoriasis patients

Key Statistics

8

Estudos

400

Participantes

Positive

B

Nota

Referenced Papers

Clinics in dermatology 2016 19 citações
The Cochrane database … 2012 130 citações
The American journal … 1991 2278 citações

Dosage & Usage

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

Dosagens Comumente Utilizadas

general:
250-500 mg combined EPA/DHA per day
skinhealth:
1,000-2,000 mg/day EPA+DHA

Limite superior: 3,000 mg/day combined EPA/DHA (FDA GRAS)

Dosagens Estudadas em Pesquisas

Dosagem Duração Efeito N
None -- Mixed --
None -- Mixed --
None -- Positive --
Mediterranean diet 12 weeks Positive --
None -- Positive --
100 mg -- Mixed --
None -- Positive --
None -- Neutral --

Melhor horário: With meals containing fat for better absorption

Safety & Side Effects

Efeitos Colaterais Relatados

  • Fishy aftertaste or burping
  • Mild gastrointestinal discomfort
  • Potential increased bleeding time at very high doses
  • May lower blood pressure slightly

Interações Conhecidas

  • Anticoagulants and antiplatelet drugs (may increase bleeding risk at high doses)
  • Blood pressure medications (additive hypotensive effect)
  • Orlistat (may reduce omega-3 absorption)

Ingestão máxima tolerável: 3,000 mg/day combined EPA/DHA (FDA GRAS)

Consulte sempre o seu profissional de saúde antes de iniciar qualquer suplemento.Sempre consulte seu profissional de saúde antes de iniciar qualquer suplemento.

Frequently Asked Questions

Does Omega-3 Fatty Acids help with UV Protection (Internal Photoprotection)?
Based on 8 studies with 400 participants, there is moderate evidence from clinical studies that Omega-3 Fatty Acids may support UV Protection (Internal Photoprotection) management. Our evidence grade is B (Good Evidence).
How much Omega-3 Fatty Acids should I take for UV Protection (Internal Photoprotection)?
Studies have used various dosages. A commonly studied range is 250-500 mg combined EPA/DHA per day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Omega-3 Fatty Acids?
Reported side effects may include Fishy aftertaste or burping, Mild gastrointestinal discomfort, Potential increased bleeding time at very high doses, May lower blood pressure slightly. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Omega-3 Fatty Acids and UV Protection (Internal Photoprotection)?
We rate the evidence as Grade B (Good Evidence). This rating is based on 8 peer-reviewed studies with 400 total participants. The overall direction of effect is positive.

References

  1. [1] Ada Radu et al.. Inflammopharmacology. 2025. Naturally derived bioactive compounds as precision modulators of immune and inflammatory mechanisms in psoriatic conditions. doi:10.1007/s10787-024-01602-z PubMed
  2. [2] Luigi Barrea et al.. Curr Obes Rep. 2025. Medical Nutrition Therapy in Dermatological Diseases: A Joint Consensus Statement of the Italian Association of Dietetics and Clinical Nutrition (ADI), … doi:10.1007/s13679-025-00630-2 PubMed
  3. [3] Pilar Zafrilla et al.. Nutrients. 2025. Dietary Bioactive Compounds and Their Role in Allergy Prevention: A Comprehensive Review. doi:10.3390/nu17223506 PubMed
  4. [4] Daniele Scherer et al.. Adv Rheumatol. 2024. Nutritional effect on lipoproteins and their subfractions in patients with Psoriatic Arthritis: a 12-week randomized trial-the DIETA trial. doi:10.1186/s42358-024-00389-5 PubMed
  5. [5] Kabir Sardana et al.. J Cosmet Dermatol. 2022. Role of nutritional supplements in selected dermatological disorders: A review. doi:10.1111/jocd.14436 PubMed
  6. [6] Meagen McCusker et al.. Clin Dermatol. 2016. Nutrition and skin: Kids are not just little people. doi:10.1016/j.clindermatol.2016.07.004 PubMed
  7. [7] Mohd Hanif Zulfakar et al.. FEBS Open Bio. 2016. In vivo response of GsdmA3(Dfl)/+ mice to topically applied fish oil - effects on cellular markers and macrophages. doi:10.1002/2211-5463.12095 PubMed
  8. [8] Fiona J Bath-Hextall et al.. Cochrane Database Syst Rev. 2012. Dietary supplements for established atopic eczema. doi:10.1002/14651858.CD005205.pub3 PubMed
  9. [9] Alycia Leiby et al.. Pediatr Rev. 2012. Complementary, holistic, and integrative medicine: Crohn disease. doi:10.1542/pir.33-2-83 PubMed
  10. [10] Bernhard Rauch et al.. Circulation. 2010. OMEGA, a randomized, placebo-controlled trial to test the effect of highly purified omega-3 fatty acids on top of modern guideline-adjusted … doi:10.1161/CIRCULATIONAHA.110.948562 PubMed
  11. [11] A P Simopoulos. Am J Clin Nutr. 1991. Omega-3 fatty acids in health and disease and in growth and development. doi:10.1093/ajcn/54.3.438 PubMed

Aviso Legal da FDA: Estas declarações não foram avaliadas pela Food and Drug Administration. Os produtos e informações neste site não se destinam a diagnosticar, tratar, curar ou prevenir qualquer doença. As notas de evidência apresentadas são baseadas em nossa análise de pesquisas revisadas por pares publicadas e não constituem aconselhamento médico. Sempre consulte seu profissional de saúde antes de iniciar qualquer regime de suplementação.