During the rainy season, many people are at risk of colds, fever, and respiratory infections due to high humidity and temperature changes.

One of the nutrients highlighted for supporting immunity and reducing oxidative stress is Quercetin.

Quercetin is a flavonoid found in various fruits and vegetables such as onions, apples, berries, and green tea. It has antioxidant, anti-inflammatory, and immune-supporting properties.

Why is Quercetin important in the rainy season? 

Immune support 
 Quercetin helps regulate T cells and NK cells
 Reduces the risk of respiratory infections for people in humid conditions

Antioxidant and anti-inflammatory effects 
Antioxidants reduce cellular damage from oxidative stress
Research shows that people supplementing with Quercetin have lower inflammation and reduced fatigue in adults

Reduce allergy and seasonal sensitivities 
Quercetin has anti-histamine effects that help reduce runny nose, nasal congestion, and skin irritation from allergies. Research from NIH Office of Dietary Supplements and Journal of Clinical Biochemistry and Nutrition, 2016, supports Quercetin’s role in immunity and oxidative stress

Quercetin intake

Recommended dose in studies: 500–1,000 mg per day
Form: Capsule, Tablet, or Powder
Can be taken with Vitamin C to enhance absorption and effectiveness

Recommended NOW Foods Quercetin

 
For those who want to supplement Quercetin confidently with high-quality standards, NOW Foods Quercetin is a popular choice
Highlights of NOW Foods Quercetin:

• Suitable dosage: 500 mg per capsule

• International quality: GMP Certified

• Convenient: easy for urban or busy lifestyles

• Supports immunity, antioxidant defense, and reduces inflammation

Suitable for:

• People with heavy workloads or indoor lifestyles

• Frequent travelers or those with limited rest

• Anyone looking to support immunity during the rainy season and seasonal changes

Summary
 Quercetin is an antioxidant and immune-supporting nutrient, especially during the rainy season

• Reduces risk of respiratory infections

• Reduces oxidative stress and inflammation

• Relieves seasonal allergy symptoms

Supplementing Quercetin through diet or NOW Foods Quercetin is a convenient and reliable option for modern lifestyles

References

• NIH Office of Dietary Supplements – Quercetin Fact Sheet
  Boots AW, et al. “Health effects of quercetin: from antioxidant to nutraceutical.” Eur J Pharmacol, 2008

• Egert S, Rimbach G. “Dietary flavonoids and the regulation of oxidative stress.” J Nutr Biochem, 2011

• Zhang Y, et al. “Quercetin supplementation for exercise-induced oxidative stress and immune function.” J Clin Biochem Nutr, 2016

• Manach C, et al. “Bioavailability and bioefficacy of polyphenols in humans.” Am J Clin Nutr, 2005