According to dietary guidelines recommended by physicians, the RDA for cholesterol intake in healthy adults and children over four years of age. (RDA) is ________ mg/day. 

The correct answer is 300.Key Points

• The recommended daily intake of cholesterol for adults and children over four years of age, according to the guidelines provided by healthcare professionals, is RDA 300mg/day.
• Cholesterol is an essential component of cell membranes and is also involved in the production of hormones, vitamin D, and bile acids.
• High levels of cholesterol in the blood can increase the risk of heart disease and stroke.

Additional Information

• Cholesterol is a type of fat that is produced by the liver and is also found in certain foods such as meat, dairy products, and eggs.
• HDL (high-density lipoprotein) cholesterol is often referred to as "good" cholesterol as it helps to remove excess cholesterol from the blood and carry it back to the liver for processing.
• LDL (low-density lipoprotein) cholesterol is often referred to as "bad" cholesterol as it can build up in the arteries and increase the risk of heart disease and stroke.
• Eating a healthy diet, exercising regularly, and maintaining a healthy weight can all help to reduce cholesterol levels and lower the risk of heart disease and stroke.