The heart is used to pump blood around the body, according to the NHS.
Having a healthy heart is crucial to a healthy life, as organs around the body need a constant supply of blood for fresh oxygen.
Taking some supplements could lower the risk of some heart-related health conditions.
Vitamin D supplements could help to lower the risk of heart disease, scientists have claimed.
A vitamin D deficiency increases the risk of the heart condition, they said.
Vitamin D could improve arterial stiffness and endothelial function, said cardiologist Dr Stephen Sinatra.
People with low levels of vitamin D are 64 per cent more likely to have a heart attack, he added.
The Cleveland Clinic said: “Latest research shows that vitamin D is also beneficial in preventing heart disease.
“A growing number of studies support the idea that low levels of vitamin D are linked to an increased risk of heart disease, and that adding vitamin D supplements can help reduce this risk.
“It is not clear just how much vitamin D is needed for increased health and disease risk reduction.
“However, many physicians are now recommending 1,000 IU to 2,000 IU daily for most adults.
“Your doctor can determine how much vitamin D you need.”
All people aged four and above should consider taking 10mcg of vitamin D every day, said dietitian Victoria Taylor.
Previously, only people aged over 65 were advised to take the supplements.
But since research revealed vitamin D’s link to heart disease, the advice was changed, she added.
It’s still possible to top up on vitamin D if supplements aren’t for you.
There are a number of great dietary sources of the vitamin, including oily fish and egg yolks.
A 140g piece of baked salmon provides the equivalent vitamin D to a 10mcg supplement.
Alternatively, spending time in direct sunlight could help the body to produce vitamin D naturally.
About 10 minutes of moderate summer sun exposure should provide you with enough vitamin D.