Grapefruit seed extract (GSE) is a substance extracted from grapefruit seeds.
Where is it found?
Grapefruit seed extract is available in liquid concentrate and in capsules and tablets.
Grapefruit seed extract
has been used in connection with the following conditions (refer to
the individual health concern for complete information):
Who is likely to be deficient?
Grapefruit seed extract is not an essential nutrient and no deficiency states have been
reported.
How much is usually taken?
The typical recommendation for the liquid concentrate is 10–12 drops in 6–7
ounces of water one to three times daily. For capsules and tablets containing dried grapefruit
seed extract, the usual recommendation is 100–200 mg one to three times daily.
Are there any side effects or interactions?
No side effects are known. The effects of grapefruit seed extract during pregnancy and breast-feeding have not been
sufficiently evaluated.
At the time of writing, there were no well-known drug interactions
with grapefruit seed extract.