Cholesterol is a fatty substance known as a lipid and is vital when it comes to normal function of the body. It’s normal to have a small level of cholesterol, but too much can increase the risk of narrowing of the arteries, heart attack and stroke. Keeping your diet low in fatty food is key, as well as saturating fat for fruit, vegetables and wholegrain cereals. Some experts recommend taking chlorella – a green algae that grows in freshwater ponds and lakes in east Asia and Australia.
Chlorella is high in a number of nutrients, including protein, iron, vitamin C, omega-3, vitamin K, calcium, potassium, and lutein, which is a carotenoid needed for healthy eyes.
It’s traditionally been used as a food supplement in Japan and studies have found various health benefits, including reduced cholesterol levels, according to Holland & Barrett.
It explains: “Chlorella may help lower cholesterol levels and improve fat metabolism in people with raised blood cholesterol, according to a 2014 study from Korea.
“Chlorella is a likely source of fat-soluble carotenoids – orange, yellow and red plant pigments – and scientists think these compete with fats for transportation in the blood, reducing the amount of fat in cells.”
Available as a powder, capsules or tablets, there are no dietary recommendations for taking chlorella, but some studies suggest using 1.2g a day, while others suggest 5 to 10g daily.
The high street health stores warns: “If you want to take chlorella, read the label carefully and avoid taking more than advised.”
It also advises not to take chlorella in the following circumstances:
- Are pregnant – it has not been proven safe during pregnancy.
- Have an immune efficiency disorder – chlorella has been shown to stimulate the immune system.
- Are taking the anticoagulant medicine warfarin – chlorella is a source of vitamin K, which is important for blood-clotting.
A symptom of high cholesterol is in the eyes – someone with the condition may have a white or grey ring that appears around the iris (the coloured part of the eye).
This condition is known as arcus senilis. Mayo Clinic explains: “It’s caused by fat (lipid) deposits deep in the edge of the cornea.”
But it’s important to note this isn’t a definite sign of high cholesterol and can be common in older adults.
If you’re under the age of 40 and notice this sign, there’s a high chance high cholesterol has developed as part of a genetic condition.
While one of the causes of high cholesterol is an unhealthy diet, it’s important to note a young person with arcus senilis may well eat healthily.