Browse Side Effects

May potentiate the effects of anticoagulant/antiplatelet drugs (e.g., warfarin), increasing bleeding risk.

High-dose iron can inhibit the absorption of zinc and possibly copper when taken simultaneously.

Theoretical risk of reducing the effectiveness of anticonvulsant drugs; caution advised.

Causes or contributes to Interference with Blood Thinners.

High doses (>5 mg/day) can cause clinically significant interference with immunoassays, notably thyroid function tests (...

May reduce the absorption of oral medications or supplements if taken simultaneously. Recommended to take glucomannan at...

Excessive intake can lead to hyperthyroidism, hypothyroidism, or thyroid autoimmunity (e.g., trigger or worsen Hashimoto...

Excessive intake can cause metallic taste, mouth/throat burning, nausea, vomiting, diarrhea, and headache. Chronic exces...

Excessive intake, especially in individuals with pre-existing thyroid conditions, can cause overactive thyroid.

Chronic toxicity symptoms including metallic taste, burning in mouth/throat, sore teeth/gums, headache, runny nose, and...

Risk with prolonged excessive intake in individuals without deficiency or with hereditary hemochromatosis.

Accumulation of excess iron in organs (liver, heart, pancreas) leading to toxicity, organ damage, and increased infectio...

Accidental overdose, especially in children, or prolonged use in individuals with hemochromatosis can lead to toxic iron...

Causes or contributes to Itching/Stinging.

Causes or contributes to Itchy Skin.

Causes or contributes to Jitters.

Chronic excessive intake may increase urinary calcium excretion, potentially contributing to kidney stone formation in s...

Causes or contributes to Kidney Stones.

Excessive protein intake may exacerbate kidney dysfunction in those with pre-existing renal disease.

Excessive, long-term high protein intake may place added stress on kidneys in individuals with pre-existing kidney disea...

High protein intake may exacerbate existing kidney disease, though not a concern for healthy individuals.

Causes or contributes to Lab Test Interference.

High doses (>5 mg/day) can cause clinically significant interference with immunoassays (e.g., thyroid, troponin) leading...

Contains residual lactose (amount varies with protein concentration). Individuals with lactose intolerance may experienc...