The human gut is home to around 100 trillion microorganisms – that’s around 10 times more than all the cells in our body. It is thought that around 400 bacterial species are present and play an important role in human health. In this article we focus primarily on the benefits of Acidophilus bacteria which, in addition to assisting in our digestion, also provide protection from infection and exert positive effects on immune function and metabolism.
As Acidophilus bacteria are not indigenous to the human gastrointestinal gut, but colonize the intestines, they need to be regally consumed to restore and maintain a healthy balance in the gut. Western diets high in processed and sterilized foods may not result in the intake of sufficient quantities of probiotic bacteria to the gut to confer a health benefit which is why taking a regular acidophilus supplement may be needed Read our guide to the best probiotics.
Acidophilus Benefits
Digestive benefits – Acidophilus probiotics are valuable for a healthy digestive function. By secreting a variety of enzymes they are particularly helpful in the digestion and metabolism of proteins, bile salts and carbohydrates.
Synthesis of vitamins – Acidophilus probiotics (partially Lactobacillus strains) are thought to play a role in the synthesis of B vitamins and vitamin K.
Inhibition of proinflammatory agents – Acidophilus is thought to help combat inflammatory conditions of the gut including inflammatory bowel disorders and irritable bowel disease.
Antimicrobial function and immune support – Certain Acidophilus probiotics exhibit antimicrobial properties and can assist in the management of Candida (see more on yeast infection treatment), Escherichia coli, Stapylococcus aureus, Salmonella and Pseudomonas. Certain Bifidobacterium species control pathogens through stimulation of the host immune system.
Diarrhea management – L. rhamnosus and Bifidobacterium strains (grouped together with other strains as an Acodophilus probitoic) can help prevent and treat traveler’s bacteria, rotavirus diarrhea and antibiotic-associated diarrhea.
Dermatitis management – Recent research has linked L. rhamnousus to the prevention and treatment of atopic dermatitis and eczema in infants.
Lactose metabolism – Certain Bifidobacterium probiotics generate lactic acid and play a role in the metabolism of lactose.
Cholesterol level management – Recent studies indicate that Bifidobactierum species help reduce serum cholesterol levels.
Cancer prevention – Although more clinical research is needed over the longer term, in animal tests certain Bfidobacterium species have been shown to prevent DNA damage. This may indicate that probotics can help prevent or delay certain types of cancer.
So the answer to the question “Are probiotics good for you?” is a resounding “Yes”. But not all probiotics are created equal, labeling is relatively unregulated and care should be taken when purchasing. Read more on how to choose the best probiotic for your needs.