Boiling spinach for a few minutes removes most of the compound that blocks your body from absorbing calcium, making the calcium in other foods easier to use.
Scientific Claim
Boiling spinach for 12 minutes reduces soluble oxalate content by up to 87%, which may improve calcium bioavailability by reducing mineral-binding compounds.
Original Statement
“Chai and Liebman reported significant reductions of soluble oxalate in vegetables by boiling for 12 min, ranging from 30 to 87%. Spinach and Swiss chard experienced the largest losses (87 and 85%, respectively).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The claim reports precise, experimentally measured reductions in soluble oxalate content under defined conditions. The verb 'reduces' accurately reflects the data.
Evidence from Studies
Supporting (0)
Contradicting (1)
This study talks generally about plant compounds like oxalates but doesn't mention boiling spinach or how much oxalate it removes, so it can't confirm or deny the claim.