We all remember learning about chlorophyll — the vibrant pigment that gives leaves their green color and allows plants to perform photosynthesis — in science class. It turns out that chlorophyll isn't just beneficial for plants — it also holds promise as a health supplement. Research on the effectiveness of chlorophyll in supporting human health is ongoing, and early studies suggest that the pigment may prevent weight gain, help balance hormones, support gut health, and even improve skin clarity. Here, we'll explore how chlorophyll may benefit the body — and how you can get more of it in your diet.
What is chlorophyll?
Chlorophyll is a natural pigment found in plants, algae, and even certain types of bacteria. It plays a key role in photosynthesis, allowing plants to transform UV light into chemical energy. There are two main types of chlorophyll, simply known as chlorophyll a and chlorophyll b, and both are vital for plant life.
Most chlorophyll health supplements are actually made with chlorophyllin, a chemical that's made from chlorophyll. Chlorophyllin maintains many of the natural benefits of chlorophyll, and is also thought to be more stable and more easily absorbed by the body. This chemical provides many of the same benefits as natural chlorophyll, but can also be easily consumed in the form of drops, capsules, or powders.
How chlorophyll may support healthy weight loss
A small 2014 study showed that chlorophyll supplements reduced hunger and increased the body's release of GLP-1, the hormone made famous by weight loss drugs like semaglutide (Ozempic/ Wegovy) and tirzepatide (Mounjaro/ Zepound). The study compared two groups of overweight women. The group that supplemented with chlorophyll felt less hungry, lost more weight, experienced fewer sugar cravings, and lowered their cholesterol levels more than the group that didn't supplement with chlorophyll.
While increasing natural chlorophyll intake or taking chlorophyll supplements isn't a magic bullet for weight loss on its own, early research shows that getting plenty of chlorophyll in the diet may both prevent weight gain and help to support healthy weight loss. Studies indicate that chlorophyll can help to regulate hormones like ghrelin, which can help to reduce appetite and cravings. This can make it easier to feel full, and may help people who are trying to lose weight feel less hungry while eating in a caloric deficit. Foods that are naturally high in chlorophyll (like green vegetables) tend to have high amounts of fiber, as well as a high water content, both of which can be helpful when trying to lose weight.
Chlorophyll has also shown promise in supporting healthy blood sugar levels, making it potentially a useful supplement for people who have diabetes as well as those who have insulin resistance. It's possible that this effect occurs because chlorophyll slows the absorption of carbohydrates in the gut. Many people experience an energy crash and an increased urge to overeat following a carb-heavy meal. Eating or supplementing with chlorophyll may help to prevent the blood sugar crash often associated with eating high amounts of carbohydrates.
The pigment also shows promise in supporting the body's natural detoxification processes, which can be helpful for those who are trying to lose weight. Some chlorophyll supplements claim that they support healthy energy levels, but this has yet to be backed up by research.
Chlorophyll for hormones
From mood to metabolism, our body's processes are governed by hormones. Chlorophyll may offer some indirect support for endocrine (hormone) system health.
Chlorophyll supports the liver as it works to remove toxins from the body. In addition to removing waste products and foreign substances, the liver also works to remove excess hormones from the body. Chlorophyll works to support the liver's natural processes, which may help to naturally balance hormone levels.
Many studies point to the natural anti-inflammatory effects of chlorophyll. The pigment shows promise in reducing inflammation, which is at the root of many hormone-related issues (like polycystic ovary syndrome), thyroid disorders, and insulin resistance. Chlorophyll's anti-inflammatory properties may help to calm the immune system and reduce oxidative stress on the body, supporting more stable endocrine system function.
Chlorophyll benefits for gut health
Chlorophyll is a prebiotic, meaning it works to provide food for the "good" bacteria in the gut. This can help to support healthy digestion, improve nutrient absorption, and support a healthy immune system. While more research is needed, early studies have shown that chlorophyll supplements may help to reduce the symptoms of inflammatory bowel disease (IBD).
Unlike some gut health supplements, chlorophyll is known for being especially gentle. One of the most well-known properties of chlorophyll is its ability to act as an internal deodorant in the digestive tract, which can work to prevent body odor and bad breath from the inside out.
How chlorophyll benefits skin
Research suggests that chlorophyll may be a powerful agent to support skin healing. Most of the studies used topical chlorophyll as opposed to ingested supplements to explore the effect of the pigment on skin. Small studies have shown that topical chlorophyll may help to reduce acne, reduce the effects of sun damage, and reduce visible signs of skin aging.
Chlorophyll's potential ability to support the body's natural detoxification processes may also support skin health. Support of these pathways may be especially helpful for people who are dealing with eczema, rosacea, acne, and other skin conditions that can be triggered by internal imbalances. To reap these benefits, you'll need to ingest chlorophyll or chlorophyllin, rather than just use a topical ointment.
How to get chlorophyll
If you're ready to start enjoying the benefits of chlorophyll, you have plenty of options. Clean eating — enjoying a diet that highly emphasizes unprocessed, whole foods — can be a smart way to start. Leafy greens, dark green vegetables, seaweed, spirulina, and wheatgrass are all rich in chlorophyll. Green grapes, broccoli, parsley, and green beans are also good sources of chlorophyll. Adding greens to fresh juice or a morning smoothie can be a delicious way to boost your chlorophyll intake.
To achieve therapeutic levels, however, you may need to use supplements. Chlorophyllin is widely available in liquid form, capsules, powders, and even gummies. Most people who use chlorophyll supplements use between 100 and 300 milligrams per day.
Side effects of chlorophyll supplements
As with any supplement, it's important to talk with your healthcare provider about whether chlorophyll supplementation is a good fit for your health. Talk with your doctor if you're pregnant or breastfeeding and curious about chlorophyll supplements. It's also important to talk with your doctor about whether chlorophyll supplementation is a good fit for you if you're taking antibiotics, acne medications, or antidepressants, as chlorophyll may interact with these drugs, potentially increasing your sensitivity to UV rays.
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