Chlorella (Chlorella pyrenoidosa) is a type of freshwater algae. People use it for nutrition and medicinal purposes. This green algae can be found alone or in clusters in freshwater, saltwater, and soil. Researchers have studied this algae extensively for its role in photosynthesis, large-scale cultivation, and sewage treatment. It grows quickly and is high in protein and B vitamins. Scientists have looked into using several species as a food source for humans, both on Earth and in space. Many people also take it as a vegan supplement. More: Detox symptoms: Signs detox is working
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This algae provides a variety of nutrients, including protein, fats, carbohydrates, fiber, chlorophyll, vitamins, and minerals. Most of the chlorella available in the U.S. comes from Japan or Taiwan, where it is processed into tablets and liquid extracts. People often use chlorella to help prevent low iron levels during pregnancy. It is also used for conditions like depression, menstrual cramps, fibromyalgia, and high cholesterol, though many of these uses lack strong scientific support.
Important considerations for using Chlorella: Benefits, dosages, and interactions
Chlorella is available in various forms, like powders, tablets, and liquid extracts. Tablets or capsules are convenient, while powders can be added to smoothies. Dosages can vary, but a common starting point is around 2-5 grams per day, gradually increasing as your body adapts. Always follow the instructions on the product or consult a healthcare professional for guidance. More: Revitalize with a detox 3-day juice cleanse
Remember that chlorella products can differ based on how the algae is grown, harvested, and processed. Dried chlorella can contain anywhere from 7% to 88% protein, 6% to 38% carbohydrates, and 7% to 75% fat.
Chlorella contains high levels of vitamin K, which helps your body with blood clotting. In contrast, warfarin (Coumadin) is a medication that slows down blood clotting. Taking chlorella might reduce the effectiveness of warfarin, so it’s important to have regular blood tests, as you may need to adjust your warfarin dosage based on those results.
Additionally, certain medications can increase your skin’s sensitivity to sunlight, and chlorella may have a similar effect. Combining these can raise the risk of sunburn, blisters, or rashes when you’re exposed to the sun, so it’s wise to wear sunscreen and protective clothing when spending time outdoors.
This algae may help with low iron levels during pregnancy. It contains small amounts of iron, and taking it by mouth could lower the risk of anemia, which happens when the body lacks enough iron. More: Natural ways to eliminate toxins from your body
Chlorella as a superfood
Nutrient Profile:
- Protein: Chlorella is about 50-60% protein by weight, making it a high-protein food. It contains all nine essential amino acids, which makes it a complete protein.
- Vitamins and minerals: It is a good source of vitamins like Vitamin C, Vitamin E, some B vitamins (including B12 in certain strains), and minerals like iron, zinc, and magnesium.
- Omega-3 fatty acids: Chlorella contains small amounts of omega-3 fatty acids, which can support heart and brain health.
- Chlorophyll: This gives chlorella its rich green color and is thought to help detoxify the body by aiding liver function and eliminating toxins. More: Goji berries: The superfood that boosts your health
Potential health benefits:
- Detoxification: Chlorella is known for its ability to bind to heavy metals and other toxins, helping to eliminate them from the body. This could be beneficial for those exposed to pollutants, like mercury or lead.
- Immune system support: Some studies suggest that chlorella can stimulate immune activity, which could help fight infections and boost overall immunity. More: Comprehensive guide to cervix biopsy aftercare
- Antioxidant properties: Chlorella is rich in antioxidants like beta-carotene, lutein, and Vitamin C. These help combat oxidative stress and may reduce the risk of chronic diseases.
- Improving cholesterol levels: Some research has shown that chlorella supplementation may help reduce levels of LDL (bad cholesterol) while increasing HDL (good cholesterol).
- Blood pressure management: A few small studies have found that chlorella may help lower blood pressure, possibly due to its potassium, arginine (an amino acid), and omega-3 content.
Safety and side effects
When you take it by mouth, it’s likely safe for up to 2 to 3 months. Some people might experience side effects like diarrhea, nausea, gas, green stools, and stomach cramps. Chlorella can also make your skin more sensitive to sunlight. If you have fair skin, be sure to wear sunscreen when you go outside. Since this algae is grown in freshwater, it’s important to buy it from reputable brands. Poorly sourced chlorella can be contaminated with heavy metals or other pollutants.
We don’t have enough information to determine if it is safe for skin application or what side effects it may cause.
During pregnancy, chlorella is possibly safe if taken by mouth for up to 28 weeks, starting in the second trimester. However, we lack reliable information on its safety while breastfeeding, so it’s best to avoid it during that time.
People with allergies to molds might react to chlorella. Additionally, those with weakened immune systems should be cautious, as it could allow harmful bacteria to take over in the gut. Since chlorella can boost immune function, those with autoimmune conditions should consult their healthcare provider before using it. Finally, chlorella can contain iodine, so those sensitive to iodine may also experience allergic reactions. More: Fertility-enhancing herbs: Is Vitex good for reproductive health?
Important findings: What does research say?
In a 2009 study on mice, researchers discovered that it might protect against age-related mental decline, likely due to its antioxidant properties. However, we still need more research to determine if these benefits extend to humans.
It may also play a role in removing harmful chemicals from the body. A 2009 study demonstrated that a specific type of chlorella, called Chlorella fusca, removed 90% of bisphenol A (BPA), from lab cultures. Xenoestrogens can mimic estrogen and may increase the risk of certain cancers, so this property of chlorella could be significant in fighting environmental toxins. More: Healing through nature: How the environment restores our well-being
A study from 2012 found that when thirty Korean participants took 5 grams of chlorella tablets daily for eight weeks, their immune systems showed positive changes. This suggests that this alga might help strengthen immunity, which is especially important for people with weakened immune systems due to medical conditions or treatments.
A 2014 study examined how chlorella affects aerobic capacity in young adults. Participants who took 15 chlorella tablets twice a day for four weeks showed an increase in their peak oxygen intake. This indicates that it might enhance endurance. While this study was small and had limitations, it hints at potential benefits for athletes looking to improve performance.
Research shows the potential benefits of this algae for various health aspects. Even so more studies are needed to confirm these effects in humans. Always consult with a healthcare professional before starting any new supplement, especially during pregnancy.
Source: WebMD and Medical News Today
