Iron is essential for red blood cells.

Meaning: This sentence is telling us that iron is very important for the production of red blood cells, which are necessary for carrying oxygen throughout our bodies.

Choice of Words: Iron is a mineral that is important for health. Essential means extremely important or necessary. Red is a color. Blood is the red liquid that flows through your body. Cells are the basic units of life.

Alternative Expressions

Without iron, you can't make enough healthy red blood cells.

Meaning: This means that if we don't have enough iron, our bodies can't make enough healthy red blood cells.

Choice of Words: Without means not having something. Can't is a short way of saying cannot, which means not able to do something. Make means to create or produce something. Enough means a sufficient amount. Healthy means in good condition or working well. Red blood cells are cells in your blood that carry oxygen. So, this sentence means that if you don't have enough iron, you won't be able to produce enough healthy red blood cells.

Red blood cells need iron to carry oxygen throughout your body.

Meaning: This means that red blood cells need iron to help them carry oxygen to all parts of our bodies.

Choice of Words: Red blood cells are cells in your blood that carry oxygen. Need means to require something in order to function properly. Iron is a type of metal. Carry means to transport something. Oxygen is a gas that is necessary for life. Throughout means in all parts of something. Body refers to the physical structure of a person or animal. So, this sentence means that red blood cells need iron in order to transport oxygen to all parts of your body.

Related Expressions