Ferrous sulfate is just one of many forms of the metal element iron.

In its natural state, the solid mineral resembles small crystals. The crystals are typically a shade of yellow, brown, or bluish-green — hence why ferrous sulfate is sometimes called green vitriol.

Most types of iron in supplements are in one of two forms — ferric or ferrous. This depends on the chemical state of the iron atoms.

The body absorbs ferrous forms of iron better than ferric forms. Thus, healthcare providers often consider ferrous forms, including ferrous sulfate, to be the best choice for iron supplements.

Benefits

• The primary benefit of taking ferrous sulfate supplements is to maintain normal iron levels in the body.
• Here’s a closer look at the benefits of taking ferrous sulfate supplements.
• Helps maintain normal blood iron levels
• May prevent symptoms of iron deficiency
• Fatigue
• headaches
• feeling weak
• low energy levels
• Difficulty concentrating
• Difficulty thinking clearly
• hair loss
• brittle nails
• upset stomach
• Poor immunity
• Heart palpitations
• Restless leg syndrome
• shortness of breath
• the inability to regulate body temperature
• pica, an urge to eat nonfood items, such as paint or soap
• Used to treat iron deficiency anemia
• Might improve surgical outcomes

Side effects

Side effects from ferrous sulfate supplements are fairly common
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