Collection: Iron

What Is Iron?

Iron is an essential mineral that the body needs to produce hemoglobin, a protein in red blood cells that carries oxygen throughout the body. It also supports myoglobin in muscles and plays a role in energy production, immune function and cognitive performance. Iron is found in foods such as red meat, liver, poultry, fish, legumes, spinach and fortified cereals. The body absorbs heme iron (from animal sources) more efficiently than non-heme iron (from plant sources). In dietary supplements, iron is available in different forms such as ferrous bisglycinate, ferrous fumarate, ferrous sulfate or iron citrate, often combined with vitamin C to support absorption.

Benefits of Iron Supplements

Iron contributes to normal formation of red blood cells and hemoglobin and supports normal oxygen transport in the body. It also contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue. Iron supports normal cognitive function and the normal function of the immune system. Iron supplements are commonly used by people with low iron intake, heavy menstrual blood loss, athletes, vegetarians/vegans, or individuals with increased needs. Supplementation can be especially important when iron deficiency or low ferritin levels are confirmed by blood tests.

Uses of Iron

Iron supplements are typically taken daily or as recommended by a healthcare professional. Many products are taken with vitamin C to improve absorption, and they are often taken away from coffee, tea, calcium supplements and high-fiber foods, which can reduce iron absorption. Some people take iron on an empty stomach, but if it causes stomach upset, it can be taken with a small amount of food. Because iron needs vary widely, choosing an appropriate dose is important. On our category page you can explore different iron supplements – from gentle bisglycinate forms to higher-dose products – and choose the option that fits your needs.

Iron: Side Effects and Safety

Iron supplements can cause digestive side effects such as nausea, constipation, stomach pain or dark stools, especially at higher doses. Taking too much iron can be harmful, and iron overdose is particularly dangerous for children. Always keep iron supplements out of reach of children and never exceed the recommended dose unless instructed by a healthcare professional. People with conditions such as hemochromatosis (iron overload), chronic liver disease, or those taking certain medications should consult a doctor before using iron supplements. If you suspect iron deficiency, blood tests (including ferritin) are recommended to confirm the need for supplementation.

Where to Buy Iron in Estonia?

In Estonia, iron supplements can be purchased from our e-shop fits.ee.