Hi all,
Here's an email I just sent in to Dr. Mercola (hope it reaches him!) regarding his recommended probiotic supplement. I researched it after receiving an email from one of my readers, asking me what I thought about it:
For those of you who would find it tedious to wade through the entire email, the important point is that the bacterium listed in Dr. Mercola's product is "Lactobacillus Sporogenes". However, according to the American Society for Microbiology, no such thing exists. And so they point out:
"If the identity of the bacterium is in question, no conclusions about its safety can be made. Although B. coagulans is not considered pathogenic, neither is it an organism normally associated with food production (although Bacillus subtilis is used in the production of "natto," a Japanese food), a status enjoyed by many members of the genus Lactobacillus. Presumably the products on the market are consumed without undue risk. However, no independent panel of experts has evaluated the safety of B. coagulans for human consumption as has been done for the lactobacilli. Erroneously calling this organism a lactobacillus incorrectly associates it with the same safety record as lactobacilli."
Bacillus (as some of you may recall) is a genus of bacterial soil organisms - see LTYG for why I do not think humans should consume bacterial soil organisms.
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Hi There,
I received a query from one of my readers (I write books on natural healing for digestive diseases) asking my opinion of Dr. Mercola's new product, "Complete Probiotic".
After researching this, I wonder if Dr. Mercola is aware that there is actually no such species as Lactobacillus Sporogenes? Which then leads us to question what exactly is in the capsule?
Here is an excellent summation of this issue from ASM (American Society for Microbiology) that I strongly suggest you pass on to Dr. Mercola. As health writers, we all make mistakes and it's very hard to stay on top of every single subject. Therefore, it's nice if we can catch errors (especially those with the potential for harm) before they "go public".
I'm available at the email and phone number listed if anyone wishes to contact me. I would also appreciate acknowledgement that this email has been recieved and passed to Dr. Mercola. I am a big fan of his work and urge my database (of over 10,000 readers) to sign up for his newsletter. Here is the article:
"Lactobacillus sporogenes" Is Not a Lactobacillus Probiotic
Microbes have proven their value in a plethora of industrial settings, including their use as probiotics, or health-promoting microbes. Within the probiotic industry, there are those who disregard the conventions of bacterial nomenclature. Perhaps the best example of this is the use of the name "Lactobacillus sporogenes" on probiotic labels, instead of the proper nomenclature, which assigns this bacterium to the genus Bacillus (Bergey's Manual, 1974).
The name "Lactobacillus sporogenes" appeared in the scientific literature in 1932 (L. M. Horowitz-Wlassowa and N. W. Nowotelnow, Cent. F. Bak., II Abt., 87:331, 1932). However, this name was never recognized by the scientific community, and was described as a misclassification in Bergey's Manual in 1939. The bacterium described by Horowitz-Wlassowa and Nowotelnow was a spore-forming bacterium, and as such could not be included as a species of Lactobacillus, which are non-spore-forming rods. This assertion was confirmed in the 5th, 6th, and 8th editions of Bergey's Manual of Determinative Bacteriology. The 4th and 7th editions do not mention the name "Lactobacillus sporogenes," nor does the Bergey's Manual of Systematic Bacteriology (1986). The name is not listed on the official bacterial nomenclature list, the List of Bacterial Names with Standing in Nomenclature. Clearly, the name "Lactobacillus sporogenes" has no scientific validity. Although there is no official classification of bacteria, the names given to bacteria are regulated through the International Code of Nomenclature of Bacteria (Bacteriological Code).
However, this name still appears on the labels of probiotic supplements worldwide and in a few publications of Asian journals. The implications of the persistence of this mislabeling should be considered. The most important of these is safety. Since "Lactobacillus sporogenes" is not recognized as a species, a product labeled with this name confirms nothing about its contents. It may be a Bacillus coagulans, as marketing literature from at least one company claims (Sabinsa Corp., Piscataway, N.J.), but is it prudent to make this presumption, especially with products making no assertion of correct nomenclature? If the identity of the bacterium is in question, no conclusions about its safety can be made. Although B. coagulans is not considered pathogenic, neither is it an organism normally associated with food production (although Bacillus subtilis is used in the production of "natto," a Japanese food), a status enjoyed by many members of the genus Lactobacillus. Presumably the products on the market are consumed without undue risk. However, no independent panel of experts has evaluated the safety of B. coagulans for human consumption as has been done for the lactobacilli. Erroneously calling this organism a lactobacillus incorrectly associates it with the same safety record as lactobacilli.
Another implication of mislabeling is related to probiotic product efficacy. Unlike probiotic species of lactobacilli, members of the genus Bacillus are not considered normal members of the intestinal flora and do persist in the mammalian gastrointestinal tract. Published literature supporting the role of Bacillus coagulans in enhancing human health is sparse, especially as compared to literature published on Lactobacillus use as probiotics.
To continue to persist using this taxonomically incorrect name leads to speculation about the advantages of willingly mislabeling a product. It is likely that companies hope to benefit from association with the large aggregate of published literature and history of use on the safety and health benefits of the genus Lactobacillus. This "halo effect" would disappear if products were labeled as containing Bacillus instead of Lactobacillus. Furthermore, a marketing advantage can be achieved by using shelf-stable Bacillus spores instead of more labile Lactobacillus. The perpetuation of intentional mislabeling in the long run will serve to erode consumer confidence and undermine the credibility of the probiotic industry. Furthermore, the implications of mislabeling may have negative regulatory implications for the entire probiotic category. The FDA convened an information-gathering meeting in September 2000 on probiotics, suggesting we can expect closer regulatory scrutiny of this product category in the future (Clemens, R., Food Technol. 55:27, 2001). The industry should act to correct the issue of mislabeling before the FDA or consumer watchdog groups do it first.
Mary Ellen Sanders
Dairy and Food Culture Technologies
Littleton, Colo.
mesanders@msn.com
Lorenzo Morelli
Instituto di Microbiologia UCSC
Piacenza, Italy
Scott Bush
Rhodia Inc.
Madison, Wis.
This article is located at:
http://newsarchive.asm.org/aug01/letter2.asp
take care,
Jini Patel Thompson
http://www.JiniPatelThompson.com










