Lactic Acid


Last update date: October 11, 2023

Lactic acid is produced by the body when enough oxygen is not present in the body or while performing physical activity. It can later be converted to glucose to make energy.

Frequently Asked Questions


What is Lactic Acid?

Lactic acid is a type of organic acid that is produced naturally in the body during certain metabolic processes, particularly during intense exercise when oxygen supply is limited. It is also found in various foods and beverages, including fermented products like yogurt and sauerkraut. Lactic acid is involved in energy production and plays a crucial role in the anaerobic metabolism of glucose.


What is positive impact of Lactic Acid?

Lactic acid has several positive impacts on the body. One of its key roles is in the production of energy. During intense physical activity, when the oxygen demand exceeds supply, lactic acid is produced as a byproduct of glucose metabolism. This allows for the continued production of ATP (adenosine triphosphate), which is the main energy source for muscle contractions. Furthermore, lactic acid is involved in the regulation of pH levels in the body. It acts as a buffer, helping to maintain the acid-base balance. This is particularly important during high-intensity exercise when lactic acid accumulates in the muscles, potentially leading to muscle fatigue and soreness. The buffering effect of lactic acid helps to minimize the negative effects of acid accumulation, allowing muscles to continue working efficiently. Additionally, lactic acid has been shown to have antimicrobial properties. It can inhibit the growth of certain bacteria, including harmful strains, which is why fermented foods like yogurt and sauerkraut, rich in lactic acid, can contribute to a healthy gut microbiome.


Who should avoid Lactic Acid?

Lactic acid, naturally produced in the body during exercise, is generally well-tolerated by healthy individuals. However, those with specific medical conditions should exercise caution or consult their healthcare provider. Individuals with liver or kidney disease, as well as certain metabolic disorders, may have impaired lactic acid clearance and are at an increased risk of developing lactic acidosis. In such cases, it is advisable to monitor lactic acid levels and follow medical guidance. Additionally, people with extreme sensitivity to lactic acid buildup may experience muscle fatigue and discomfort during intense exercise. Adjusting exercise intensity or duration may be necessary for these individuals. As always, it is recommended to consult a healthcare professional for personalized advice, especially if you have any underlying health conditions or concerns.


What are common sources of Lactic Acid?

Lactic acid is found in various food and beverage sources, particularly those that have undergone fermentation. Fermented dairy products, such as yogurt, kefir, and buttermilk, are excellent sources of lactic acid. These products are made by introducing specific bacteria to milk, which convert lactose (milk sugar) into lactic acid through fermentation. Other fermented foods, such as sauerkraut, kimchi, pickles, and certain types of sourdough bread, also contain lactic acid. These foods are created by allowing beneficial bacteria to ferment the sugars and produce lactic acid as a byproduct. In addition to fermented foods, lactic acid can be found in some sports drinks, energy gels, and supplements designed to support endurance athletes. These products may contain lactic acid or its salts, such as sodium lactate, as they are believed to provide a readily available energy source during exercise.

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