Chlorophyll is the natural green pigment plants use for photosynthesis. Its semi-synthetic derivative, chlorophyllin, is often ingested as an internal remedy. The popular claim suggests that taking this compound acts as a systemic deodorant to manage body odors. This article examines the biological origin of body odor and the scientific validity of using chlorophyll for this purpose.
The Biological Origin of Body Odor
Body odor, scientifically termed bromhidrosis, is a byproduct of microbial activity on the skin’s surface, not sweat alone. The body has two primary sweat glands: eccrine and apocrine. Eccrine glands produce watery, odorless sweat for thermoregulation across the entire body.
Apocrine glands are concentrated in areas like the armpits and groin, developing after puberty. They release a thicker, milky fluid containing odorless compounds, such as lipids and proteins. This secretion provides a rich nutrient source for resident bacteria.
Specific bacteria, particularly Corynebacterium and Staphylococcus, metabolize these odorless precursors. Their enzymatic action breaks down the compounds into small, volatile organic molecules. These resulting molecules, such as volatile fatty acids and various thioalcohols, create the characteristic scent recognized as body odor.
Addressing the Claim: Scientific Evidence for Chlorophyll
The idea of chlorophyll as an internal deodorizer dates back to the 1940s and 1950s. Early observations focused on using chlorophyllin to reduce strong odors in clinical settings. It was administered orally to manage malodors associated with conditions like colostomies and chronic wounds.
Older, small-scale studies suggested the compound might neutralize or bind to odor-causing molecules internally. For example, a 1980s double-blind trial found a modest reduction in fecal odor in elderly nursing home patients using chlorophyllin. This historical context forms the basis for the current popular belief.
However, scientific evidence is sparse regarding its use as a general, daily deodorant for healthy individuals. Modern, large-scale clinical trials investigating chlorophyllin’s effect on routine body odor or halitosis are lacking. The overall quality of evidence supporting widespread deodorizing effects is low, relying heavily on anecdotal reports and historical clinical data.
Practical Considerations and Safety Profile
Consumers typically take chlorophyll in two forms: liquid chlorophyll dissolved in water, or capsules containing chlorophyllin. The proposed deodorizing mechanism suggests chlorophyllin acts in the gastrointestinal tract. It is theorized to bind to odor-producing compounds, preventing their absorption and subsequent release through breath and sweat.
Chlorophyllin is generally well-tolerated at typical doses. Common side effects include temporary, harmless green discoloration of urine and feces, and mild gastrointestinal discomfort like gas or soft stools.
A more serious consideration is potential photosensitivity, where the skin becomes more sensitive to sunlight. This risk increases with higher doses, requiring caution and sun protection outdoors. Since chlorophyllin may contain copper, individuals with specific medical conditions or those taking other medications should consult a healthcare professional before starting supplementation.