Evidence supporting the use of: Lemon
For the health condition: Halitosis

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Lemon has been traditionally used to help manage halitosis (bad breath) due to its strong, pleasant aroma and its acidity, which can stimulate saliva production. Increased saliva flow helps to cleanse the mouth and reduce the bacterial load that contributes to foul odors. In many cultures, lemon juice or lemon-based rinses are a common home remedy for freshening breath. The effectiveness of lemon in this context is largely anecdotal; while lemon's citric acid may create an environment that is less hospitable to odor-causing bacteria, the effect is temporary and does not address underlying causes of halitosis such as periodontal disease or systemic issues.

Scientific evidence supporting the use of lemon specifically for halitosis is limited. Some small studies and in vitro research suggest that citric acid can inhibit the growth of certain bacteria, but these findings have not been robustly validated in clinical settings for halitosis treatment. Moreover, frequent use of lemon juice may erode dental enamel due to its acidity, potentially leading to other oral health problems.

In summary, lemon is a traditional remedy for halitosis with a plausible mechanism (saliva stimulation and mild antibacterial action), but scientific evidence is weak and mostly indirect. It may provide temporary relief but is not a substitute for proper oral hygiene or professional dental care.

More about lemon
More about Halitosis