Iron, Natural

Also known as: ferrous sulfate, ferrous gluconate, ferrous fumarate, ferric, iron bisglycinate

Essential mineral for oxygen transport in blood (hemoglobin) and energy production. Iron deficiency is the most common nutritional deficiency worldwide.

18mgRDARecommended Dietary Allowance — the daily intake sufficient for 97-98% of healthy adults. Set by the National Institutes of Health.

45mgUpper LimitTolerable Upper Intake Level (UL) — the maximum daily dose unlikely to cause adverse health effects. Exceeding this consistently may increase toxicity risk.

4ProductsNumber of supplements in our database that contain this ingredient.

2Health ClaimsNumber of researched health benefits associated with this ingredient, rated by evidence strength (strong/moderate/weak).

5Side EffectsNumber of documented side effects from clinical literature and adverse event reports.

Health Claims & Evidence

strongSupports iron levels

Iron supplementation is used to address iron deficiency. Should be taken under medical supervision as excess iron can be harmful.

0 studies on PubMed

strongSupports energy levels

Iron is essential for oxygen transport and cellular energy production.

0 studies on PubMed

Known Side Effects

constipation
nausea
stomach pain
dark stools
toxicity in overdose (especially children)

Drug Interactions

antacids
calcium supplements
tetracycline antibiotics
levodopa
levothyroxine

Always consult your healthcare provider before combining supplements with medications.

Products Containing Iron, Natural (4)

AloveaVitality

85 2

XYMOGENOptiCleanse GHI Lite Vanilla Delight Sugar- & Stevia-Free

80 3

Garden of LifeRaw Organic Fit Vanilla Flavor

77 4

Maxi HealthMaxi Green Energee Natural Berry Flavor