top of page

Nutrients to Support an Effective Mucous Barrier

Nutrients to support an effective Mucus Barrier to protect from viruses

  • Vitamin C - from 500 to 5000 mg per day. A general recommendation is to take 1000 mg every hour up to bowel tolerance. Stay hydrated and keep your electrolytes in balance. A little Himalayan sea salt to your water may do the trick.

  • Vitamin D – 5000 IU per day for adults and children over 10 years of age. For children under the age of 1 the dosage is 1000 IU; between 2-4 years: 2,000 IU, between 4-9: 3000 IU daily. In acute viral infections, 50,000 IU per day of Vitamin D3 in divided doses for 2-3 days will likely relieve symptoms.

  • Vitamin A – 1500 mcg (500ICU) for women, 3000 mcg (10,000IU) for men. In acute viral infections, 15,000 to 50,000 IU for up to 3 days is safe if there is no change of pregnancy. 1500 mcg/day if pregnant, lactating or in childbearing years.

  • N-Acetyl Cysteine - 1200-1800 mg per day for a few weeks to support liver and lung tissue. This amino acid is a mucus fortifying agent. It also a precursor of Glutathione, our master anti-oxidant.

  • Zinc - up to 30 mg per day

  • Add Quercetin rich foods like onions and garlic to your diet (Quercetin has been shown to fight infections)

  • Protease enzymes (bromelain, serratia peptidase) to support the respiratory tract and the production of an effective mucous barrier.

  • Oregano Oil : Research shows oregano oil has antimicrobial, antiviral and antifungal properties. It has potent antioxidant, anti-inflammatory, antidiabetic, and cancer-suppressor agents. A few drops (up to 6) in a little warm water will help clear upper respiratory mucus build up and help clear sinuses. It is a strong oil so, 1-2 drops might be enough.


· Mathew JL. Vitamin A supplementation for prophylaxis or therapy in childhood pneumonia: a systematic review of randomized controlled trials. Indian Pediatr. 2010 Mar;47(3):255-61.

· Teymoori-Rad M, Shokri F, Salimi V, Marashi SM. The interplay between vitamin D and viral infections. Rev Med Virol. 2019 Mar;29(2):e2032.

· Nakamura S, Hashimoto Y, Mikami M, et al. . Effect of the proteolytic enzyme serrapeptase in patients with chronic airway disease. Respirology. 2003 Sep;8(3):316-20.

· Stey C, Steurer J, Bachmann S, Medici TC, Tramer MR. The effect of oral N-acetylcysteine in chronic bronchitis: a quantitative systematic review. Eur Respir J 2000;16(2):253-62.


bottom of page