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3 Steps That I Take to Reduce
My Risk of Flu and Cold


My Cold and Flu Prevention


1. Vitamin D3 [1] [2] [3] [4]

I take 5,000 IU daily for prevention.


Get a blood test for 25-hydroxyvitamin D3 from your doctor or our office. Each person requires different doses. A few people do not require vitamin D3 supplements while a few may require 15,000 IU daily.


I take 50,000 IU per day for 3 days at the first sign of the flu. Do not continue this dose for more than a few days.

2. Beta-Glucan [5]  [6]  [7]  [8]  


500 mg once daily on an empty stomach for prevention


500 mg twice daily on an empty stomach at the first sign of cold or flu.


3. Probiotic [9]  [10]  [11]


Ultra Flora Plus DF 1 capsule once to twice daily on an empty stomach.

                     Each capsule contains 15 billion active cells.


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My Cold and Flu Treatment


I add:
 [12] [13]


2 tablets every 2 hours for 24 hours, on an empty stomach, then


1-2 tablets three times daily for 5-7 days on an empty stomach.






1  capsule every 4 hours for 24 hours, on and empty stomach, then   

1 capsule three times daily for 5-10 days. 


Contains licorice. May cause water retention and high blood pressure in some people. Not intended for long term use. 


Is it a Cold or the Flu?

About the Author:
Keith D. Bishop, Clinical Nutritionist, B.Sc. Pharmacy helps clients improve their health using natural products, tests and self care. Call 405.936.3333 to schedule your Natural Care appointment.

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[1]  On the epidemiology of influenza. Cannell JJ, Zasloff M, Garland CF, Scragg R, Giovannucci E. Virol J. 2008 Feb 25;    5:29

[2]  The role of vitamin D3 in preventing infections. Grant WB, Garland  CF. Age Ageing. 2008 Jan;37(1):121-2.

[3]  Epidemic influenza and vitamin D. Cannell JJ, Vieth R, Umhau JC, Holick MF, Grant WB, Madronich S, Garland CF, Giovannucci E. Epidemiol Infect. 2006 Dec;134(6):1129-40

[4]  Vitamin D intake and susceptibility of mice to experimental swine influenza virus infection. YOUNG GA Jr, UNDERDAHL NR, CARPENTER LE.  Proc Soc Exp Biol Med. 1949 Dec;72(3):695-7.

[5]  Enhancement of peripheral blood CD8+ T cells and classical swine fever antibodies by dietary beta-1,3/1,6-glucan supplementation in weaned piglets. Wang Z, Shao Y, Guo Y, Yuan J. Transbound Emerg Dis. 2008 Dec;55(9-10):369-76.

[6]  Beta-glucan enhancement of T cell IFNgamma response in swine. Xiao Z, Trincado CA, Murtaugh MP. Vet Immunol Immunopathol. 2004 Dec 8;102(3):315-20.

[7]  Antiviral effect of Saccharomyces cerevisiae beta-glucan to swine influenza virus by increased production of interferon-gamma and nitric oxide. Jung K, Ha Y, Ha SK, Han DU, Kim DW, Moon WK, Chae C. J Vet Med B Infect Dis Vet Public Health . 2004 Mar;51(2):72-6.

[8]  Stimulation of microbicidal host defence mechanisms against aerosol influenza virus infection by lentinan. Irinoda K, Masihi KN, Chihara G, Kaneko Y, Katori T. Int J Immunopharmacol. 1992 Aug;14(6):971-7. 

[9]  Probiotics, prebiotics, and synbiotics. de Vrese M, Schrezenmeir J. Adv Biochem Eng Biotechnol. 2008;111:1-66.

[10]  Effects of a multi-strain probiotic (PrimaLac) on performance and antibody responses to Newcastle  disease virus and infectious bursal disease virus vaccination in broiler chickens. Talebi A, Amirzadeh B, Mokhtari B, Gahri H.

Avian Pathol. 2008 Oct;37(5):509-12.

[11]  Probiotic Lactobacillus acidophilus enhances the immunogenicity of an oral rotavirus vaccine in gnotobiotic pigs.

Zhang W, Azevedo MS, Wen K, Gonzalez A, Saif LJ, Li G, Yousef AE, Yuan L. Vaccine . 2008 Jul 4;26(29-30):3655-61.

[12]  [Effectiveness of using the drug Kan-Yang in children with acute respiratory viral infection (clinico-functional data)] Shakhova EG, Spasov AA, Ostrovskiĭ OV, Konovalova IV, Chernikov MV, Mel'nikova GI. Vestn Otorinolaringol. 2003;(3):48-50

[13]  The effect of medicinal plants used in Chinese folk medicine on RANTES secretion by virus-infected human epithelial cells. Ko HC, Wei BL, Chiou WF. J Ethnopharmacol. 2006 Sep 19;107(2):205-10.


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 Keith D. Bishop, Clinical Nutritionist

Keith D. Bishop
Clinical Nutritionist
B.Sc. Pharmacy


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