Table of ContentsView AllTable of ContentsBenefitsSimilar SupplementsSide EffectsDosageHow to StoreSources of Chlorophyll & What to Look For
Table of ContentsView All
View All
Table of Contents
Benefits
Similar Supplements
Side Effects
Dosage
How to Store
Sources of Chlorophyll & What to Look For
Chlorophyll, a fat-soluble pigment found naturally in plants, is being studied to determine whether it has health benefits. Proponents of chlorophyll believe the pigment helps detox the body, provide antioxidant properties, strengthen theimmune system, and boost energy, among other benefits.However, research to support these claims is both limited and, at times, conflicting.
Chlorophyll is the substance that gives plants their green color and helps them create energy via photosynthesis.While chlorophyll is naturally found in various plant foods, supplements may containchlorophyllin, a water-soluble alternative to chlorophyll.
In the United States, the Food and Drug Administration (FDA) does not regulate supplements the way it regulates prescription drugs. That means some supplement products may not contain what the label says. Whenchoosing a supplement, look for independently tested products and consult a healthcare provider, registered dietitian nutritionist (RD or RDN), or pharmacist.
Health Benefits of Chlorophyll and How to Use It Safely
Below is a look at some of the science behind popular uses of chlorophyll.
May Help Treat Iron Deficiency Anemia
Some research suggests that chlorophyll may aid in the treatment ofiron deficiency anemia, although research on the topic is limited.
A 2019 clinical trial looked at the effect of a supplement that contained both chlorophyll and sodium iron chlorophyllin, a derivative of chlorophyll. In the study, children and adults with iron deficiency anemia were treated with low, moderate, or high doses of the supplement for one month.
By the end of the study, the supplement was correlated with improvements in total red blood cell counts and the health ofred blood cellsin all groups.Hemoglobinlevels were also improved in all adult groups, as well as in children who received moderate and high doses of the supplement.
May Have Anticancer Properties
Many supplements and nutrients have been looked at for their potential role in cancer treatment or prevention, including chlorophyll. Unfortunately, chlorophyll’s potential cancer-fighting effects have only been studied in animals or in vitro (in test tubes).
According to a review of such studies, chlorophyll may beantiproliferative, which means it may be able to stop the growth and spread ofcancer cells. The review also points out the potential antioxidant effects of chlorophyll that may be useful in treating cancer.
Human trials are necessary to support these and other claims surrounding chlorophyll’s role in cancer prevention. As with other supplements, chlorophyll should only be used as a complementary, or additional, treatment and should never replacefirst-line treatmentsfor cancer.
May Enhance Skin Care
Topical chlorophyll (applied to the skin) may help treat various skin conditions, including acne and sun damage.
Stronger research is needed in this area to confirm chlorophyll’s potential role in skin care.
Other Uses
Chlorophyll may have other uses, but research is severely lacking.
Proponents of chlorophyllbelieve the pigment may play a role in the treatment of such conditions as:
However, once again, there is little to no scientific evidence to support these and other health claims. Be sure to talk with your healthcare provider before using chlorophyll.
1:51Click Play to Learn All About Chlorophyll
1:51
Click Play to Learn All About Chlorophyll
Other herbs and supplements are thought to work similarly to chlorophyll. Typically, you should only take one herb or supplement for any given health condition at a time, so check with your healthcare provider about which options are best for you.
There are many supplements that are similar to chlorophyll. Below is a look at just a few of these similar supplements:
Side Effects and Safety
Chlorophyll supplements may cause side effects that can range from mild to severe. Though chlorophyll is generally considered safe in supplement form, some people may experience mild side effects. Although rare, the following side effects of chlorophyll supplements are possible:
Topical chlorophyll may cause a mild skin reaction, causing the skin toitchor burn.
Chlorophyll supplements rarely cause severe reactions. In fact, very few have been reported. However, it is possible to have an allergic reaction to chlorophyll supplements. Signs of an allergic reaction may include:
If you experience a severe allergic reaction to chlorophyll supplements, seek medical attention immediately.
Precautions
Chlorophyll is thought to be safe for most people. However, some people should take extra precautions.
There is not enough research to know if chlorophyll supplements are safe to use during pregnancy orlactation(breastfeeding). People who are pregnant or breastfeeding should consult a healthcare provider and may need to avoid using chlorophyll.
It is also unknown if it is safe for children to use chlorophyll supplements.
As research is still emerging, it’s best to play it safe and consult your healthcare provider before starting chlorophyll supplements, especially if you have any health conditions.
Interactions
Chlorophyll supplements may interfere with certain medications, herbs, and supplements. However, these interactions are not well-documented.
In one case report, a male with relapsed cancer experienced delayed clearance of a chemotherapy drug calledmethotrexateafter using chlorophyll. Although it has not been completely proven, researchers believe the delayed clearance of methotrexate was due to chlorophyll.
It’s important to note that this interaction has only been reported in this one case. If you’re receiving methotrexate or another cancer therapy, be sure to check with your healthcare provider before using chlorophyll.
Other interactions between chlorophyll and drugs, supplements, or foods may exist. More research is needed in this area before we can know the full safety profile of chlorophyll supplements.
Before purchasing a supplement, carefully read the ingredients list and nutrition facts panel to know which ingredients are in the product and how much of each ingredient is included. Please review all supplement labels with your healthcare provider to discuss any potential interactions with foods, other supplements, and medications.
Always speak with a healthcare provider before taking a supplement to ensure that the supplement and dosage are appropriate for your individual needs.
Due to a lack of quality research, there are no approved dosage guidelines for chlorophyll supplements.
As a general rule of thumb, do not exceed the dose printed on the product label. Your healthcare provider can help you find the best dose, type, and length of consumption for your specific needs.
What Happens If I Take Too Much?
However, consuming more chlorophyll than recommended may increase your risk of side effects.
To prevent any negative reactions, only use chlorophyll supplements as directed.
Supplement FactsActive ingredient(s):AntioxidantsAlternate name(s):Chlorophyl, pigment, chlorophyll ALegal status: Legal and available over the counter in the United StatesSuggested dose:No suggested doseSafety considerations:May cause diarrhea, loose stools, and stomach cramps
Supplement Facts
Active ingredient(s):AntioxidantsAlternate name(s):Chlorophyl, pigment, chlorophyll ALegal status: Legal and available over the counter in the United StatesSuggested dose:No suggested doseSafety considerations:May cause diarrhea, loose stools, and stomach cramps
How to Store Chlorophyll
Store your chlorophyll supplements in a cool, dry place out of direct sunlight.
Some chlorophyll supplements may require refrigeration. This information should be listed on the product label or packaging. Be sure to follow storage directions as listed.
Keep supplements out of the reach of small children and pets, and make sure they are properly sealed. Discard chlorophyll supplements once they pass their expiration date.
Many foods naturally contain chlorophyll, which means you may not need to take a supplement to reap the potential benefits.
It’s always best to take a food-first approach to nutrition. This means getting all the nutrients you can from food instead of supplements. A healthy, well-balanced diet will always top herbs and supplements.
Food Sources of Chlorophyll
Chlorophyll is found naturally in variousfruits and vegetables.
It’s easy to tell which ones contain chlorophyll, as the pigment causes many vegetables, in particular, to be green.However, even fruits and vegetables that aren’t green may contain chlorophyll.
Some fruits and vegetables that contain chlorophyll include:
Chlorophyll Supplements
Nutritional supplements containing chlorophyll are sourced from various plants that contain the pigment.
Chlorophyll supplements are available in tablet, capsule, gummy, and liquid form. Some supplements may contain chlorophyllin (a derivative of chlorophyll that often contains zinc, iron, or copper), instead of chlorophyll itself.
Most chlorophyll supplements are naturally vegan and gluten-free, but be sure to check the product label to confirm any necessary dietary restrictions.
Summary
Chlorophyll is a pigment that gives many plants their green color, and it may offer various health benefits. However, there is little evidence to support these claims.
When taken as a supplement, chlorophyll may cause green stools, stomach cramps, loose stools, and other gastrointestinal side effects.
Chlorophyll should not replace prescribed medications or other conventional treatments you may need. Be sure to talk with your healthcare provider before using chlorophyll supplements to make sure they’re right for you.
16 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
Martins T, Barros AN, Rosa E, Antunes L.Enhancing health benefits through chlorophylls and chlorophyll-rich agro-food: A comprehensive review.Molecules. 2023;28(14):5344. doi:10.3390/molecules28145344
Zhong S, Bird A, Kopec RE.The metabolism and potential bioactivity of chlorophyll and metallo-chlorophyll derivatives in the gastrointestinal tract.Mol Nutr Food Res. 2021;65(7):e2000761. doi:10.1002/mnfr.202000761
Yang Y, Jiang X, Pandol SJ, Han YP, Zheng X.Green plant pigment, chlorophyllin, ameliorates non-alcoholic fatty liver diseases (NAFLDs) through modulating gut microbiome in mice.Front Physiol. 2021;12:739174. doi:10.3389/fphys.2021.739174.
Ding L, Xu L, Jin Y, et al.Efficacy of SXN in the treatment of iron deficiency anemia: a phase IV clinical trial.Evid Based Complement Alternat Med. 2019;2019:8796234. doi:10.1155/2019/8796234.
Vaňková K, Marková I, Jašprová J, et al.Chlorophyll-mediated changes in the redox status of pancreatic cancer cells are associated with its anticancer effects.Oxid Med Cell Longev. 2018;2018:4069167. doi:10.1155/2018/4069167
Jiang LI, Hino PD, Parker L, Stephens TJ, Mccook J, Gotz V.Efficacy and tolerability of an acne treatment regimen with antiaging benefits in adult women: a pilot study.J Clin Aesthet Dermatol. 2018;11(6):46-51.
Abdel Moety GAF, Ali AM, Fouad R, Ramadan W, Belal DS, Haggag HM.Amino acid chelated iron versus an iron salt in the treatment of iron deficiency anemia with pregnancy: A randomized controlled study.Eur J Obstet Gynecol Reprod Biol. 2017;210:242-246. doi:10.1016/j.ejogrb.2017.01.003.
Yee BE, Richards P, Sui JY, Marsch AF.Serum zinc levels and efficacy of zinc treatment in acne vulgaris: A systematic review and meta-analysis.Dermatol Ther. 2020;33(6):e14252. doi:10.1111/dth.14252
Al-Niaimi F, Chiang NYZ.Topical vitamin C and the skin: mechanisms of action and clinical applications.J Clin Aesthet Dermatol. 2017;10(7):14-17.
MedlinePlus.Chlorophyll.
MedlinePlus.Allergic reactions.
Linus Pauling Institute at Oregon State University. Micronutrient Information Center. Oregon State University.Chlorophyll and Metallo-Chlorophyll Derivatives
Brooks SL, Sanders J, Seymour JF, Mellor JD.A case of delayed methotrexate clearance following administration of a complementary medication containing chlorophyll.J Oncol Pharm Pract. 2014;20(3):225-228. doi:10.1177/1078155213492553.
Wang E, Wink M.Chlorophyll enhances oxidative stress tolerance in Caenorhabditis elegans and extends its lifespan.PeerJ. 2016;4:e1879. doi:10.7717/peerj.1879
Cömert ED, Mogol BA, Gökmen V.Relationship between color and antioxidant capacity of fruits and vegetables.Curr Res Food Sci. 2019;2:1-10. doi:10.1016/j.crfs.2019.11.001
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