Every health store I go to seems to be populated with people that believe sugar feeds yeast. I often hear conversations about it. Now, if there's anyone familiar with yeast, I am. I've had fungal issues (tons of tinea etc.) several times in my life, was diagnosed with a mold allergy, and had numerous bacterial issues (acne, sinus infections, ...).
But the one thing that made it all worse was cutting out sugar completely. Is the theory that you need to eat sugar so that yeast doesn't become angry a valid one, or is there an other theory of why sugar helps against fungal problems?
asked byKorion (8938)
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on April 20, 2012
at 08:26 PM
Yes there is some validity in low carb diets and fungal infections. Check out what Dr. Paul Jaminet said about ketosis and candida:
As far as low-carb ketosis goes, this is a woefully under-researched area. It???s more basic biology, if you think about the biology it has to be this way. Also personal experience, nothing flares my fungal infection like ketogenic dieting.
However, there are papers dealing with diabetics (who experience high levels of ketones, even ketoacidosis) and their vulnerability to fungal infections. ???diabetes Candida??? brings up 704 papers. Here are some papers:
http://www.ncbi.nlm.nih.gov/pubmed/3084140. Neutrophils are less able to kill Candida when ketones are present.
http://www.ncbi.nlm.nih.gov/pubmed/2356851 Obese people develop candida infections when fasting causes ketosis.
http://www.ncbi.nlm.nih.gov/pubmed/10981686 Virulent strains of Candida may make and release pyruvate causing neighboring human cells to turn the excess pyruvate into ketones which benefit the Candida.
http://www.ncbi.nlm.nih.gov/pubmed/8067777 Serum drawn from fasting patients is less protective against Candida than serum drawn postprandially, and antifungal drugs work better in the fed state than in a fasted state.fed state than in a fasted state.
This was new info for me, but I always wondered if 'starving' the yeast actually made it more virulent.
on April 20, 2012
at 08:25 PM
Yeasts (Candida spp., among others) consume sugar. Tinea are fungi, but not yeasts. Molds are not yeasts. Bacteria also tend to feed off sugar, but are not yeasts.
Human yeast infections are invariably Candida spp. They are normal flora, and become pathological in the immunocompetent only in cases of vaginal eradication of protective bacterial flora ("yeast infection") or, rarely, pharyngitis (sore throat from yeast). The latter is far more typical of the severely immunocompromised, as are all other pathological Candida infections. In fact, persistent pathological Candida is one of the infections that defines the transition from HIV+ serology to full-blown AIDS.
So yes: sugar feeds yeast. Tinea, mold, and bacteria are not yeasts. Sugar predisposes to most non-viral infections, however, and is /typically/ an exacerbating factor in both bacterial and tinea infections. Also keep in mind that tinea is a broad term for at least three genera of fungal pathogens, with numerous species within each.