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If you’re looking for a food that lowers cholesterol naturally, is exceptionally nutritious, packed with protein and phytochemicals, and will boost your immune system and give you energy all while tackling your cholesterol and triglycerides, Spirulina is it! A rich, deep-green powder, Spirulina is an ancient food source that is making a comeback as one of the most prized “green foods” in the natural health world. (See our post “Healthy Energy Drinks: Use These 3 Ingredients in Delicious DIY Mixes” for a smoothie recipe that includes spirulina.)
A new study published in the Journal of the Science of Food and Agriculture is just the latest of many to demonstrate how effective Spirulina is as a food for naturally lowering cholesterol. And don’t worry, while some people love the taste of Spirulina so much that they eat spoonfuls of the powder straight (staining their mouths a dark green in the process), it’s also widely available in tablet and capsule form.
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What is Spirulina?
Spirulina is a type of cyanobacteria and not technically algae, even though it is often called blue-green algae. It naturally grows in the alkaline lakes of Mexico and Africa. Two Spirulina species, Spirulina platensis (Arthrospira platensis) and Spirulina maxima (Arthrospira maxima) are the most intensively investigated due to their history as food sources and their nutritional and medicinal value. After it was harvested and dried, Spirulina was made into cakes and eaten by the Aztecs and used by the Chadians in Central Africa to make cake or broths. Spirulina is well-recognized for its unusually high protein content (60–70%) and its richness in vitamins, minerals, essential fatty acids (especially GLA), carotenoids (especially zeaxanthin), and other nutrients.[2,3]
Spirulina Significantly Lowers Triglycerides and Cholesterol in Human Study
The most recent study to examine the cholesterol and triglyceride-lowering effects of Spirulina was conducted by a group of Greek researchers from various universities. They gave 52 adults with recently diagnosed dyslipidemia (high cholesterol or high triglycerides/low HDL) 1 gram of Spirulina per day for 3 months. A full lipid panel using fasting blood samples was performed at the beginning and end of the study period. The researchers also tracked blood pressure, height, weight, and body mass index.
At the end of the 3-month study period, the subjects’ average triglycerides, total cholesterol, LDL cholesterol, and ratio of total cholesterol to HDL cholesterol were significantly decreased. Triglycerides dropped by 16.3%, total cholesterol by 8.9%, LDL cholesterol by 10.1%, and the total cholesterol to HDL ratio by 11.5%. Blood pressure, weight and body mass index were essentially unchanged. The researchers concluded that Spirulina supplementation at a dose of 1 gram daily has powerful lipid-lowering effects, especially on triglycerides.
Research Shows Spirulina’s More Than Just a Food That Lowers Cholesterol Naturally
Previous studies have also demonstrated Spirulina’s role as a food that lowers cholesterol naturally. For example, a 2007 study found that 4.5 grams of Spirulina maxima per day for 6 weeks significantly lowered triglycerides from an average of 238 mg/dL to 164 mg/dL. Total cholesterol and LDL cholesterol were also significantly reduced, while the “good” HDL cholesterol significantly increased. In this study, average blood pressure also significantly decreased. Other human studies have also demonstrated Spirulina’s ability to lower blood pressure, reduce inflammation, enhance the immune system, boost anti-oxidant defenses, kill viruses, and treat allergy-related nasal symptoms.[1,4-10]
How to Take Advantage of Spirulina
Spirulina is a true superfood not to be ignored! You can count on it as not only a safe, green food that lowers cholesterol naturally, but one that has the potential to also lower your blood pressure, enhance your immunity, boost your nutrition, and fight inflammation and oxidation (the key drivers of aging and disease). Take at least 1000 mg (1 gram) of Spirulina per day, up to 8 or more grams, preferably organic.
What About You?
Have you tried Spirulina? Do you like it? Has regular Spirulina intake benefited your health? What other foods do you consume to help lower your cholesterol? Our readers want you to share your natural healing experiences. Please do so in the Comments section below.
Originally published in 2015, this post has been updated.