Lactic acid side effects
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Lactic Acid Side Effects: An Overview
Introduction to Lactic Acid and Lactic Acid Bacteria
Lactic acid is a naturally occurring organic acid that plays a crucial role in various biological processes. It is produced by lactic acid bacteria (LAB), which are commonly found in fermented foods like yogurt and other dairy products. While LAB are known for their numerous health benefits, it is important to understand their potential side effects as well.
Health Benefits of Lactic Acid Bacteria
Improved Lactose Digestion
One of the most well-documented benefits of lactic acid bacteria is their ability to improve lactose digestion. Studies have shown that lactase-deficient individuals absorb lactose better when it is consumed in yogurt compared to milk. This is because the lactic acid bacteria in yogurt help break down lactose, making it easier to digest.
Alleviation of Diarrheal Disorders
Lactic acid bacteria have also been found to alleviate various types of diarrhea, including travelers' diarrhea and infant diarrhea. Multiple studies have demonstrated significant effects of LAB on reducing diarrheal symptoms, particularly in infants. However, the effect on antibiotic-associated diarrhea is less clear, with some studies showing benefits and others not.
Potential Anti-Cancer Effects
Experimental studies suggest that lactic acid bacteria may have an impact on human cancer cell lines, although clinical evidence is still lacking. The potential anti-cancer effects are attributed to the ability of LAB to modulate the immune system and produce bioactive compounds that may inhibit tumor growth.
Controversial and Less Documented Effects
Serum Cholesterol Reduction
The effect of lactic acid bacteria on serum cholesterol levels is still a subject of controversy. Some studies suggest that LAB can help reduce cholesterol levels, while others do not find significant effects. More research is needed to draw definitive conclusions in this area.
Stabilizing Colonic Flora
Another proposed benefit of lactic acid bacteria is their ability to stabilize the colonic flora. However, this effect has not been well-documented in clinical studies. The idea is that LAB can outcompete harmful bacteria in the gut, thereby promoting a healthier digestive system.
Conclusion
Lactic acid and lactic acid bacteria offer numerous health benefits, particularly in improving lactose digestion and alleviating diarrheal disorders. However, some of their effects, such as serum cholesterol reduction and stabilization of colonic flora, remain controversial and require further research. Understanding these potential side effects and benefits can help individuals make informed decisions about incorporating lactic acid bacteria into their diets.
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