In healthy adults from Galicia, Spain, eating more grains is linked to slightly lower levels of selenium in the blood, possibly because compounds in grains interfere with selenium absorption.

47

Pro

0

Against

Evidence from Studies

Supporting (1)

47

Community contributions welcome

47

Associations between food group intake and serum levels of selenium and other essential and toxic trace elements in adults

Cross-Sectional Study

Human

2026 Feb 28

People in Spain who ate more grains had slightly lower levels of selenium in their blood, which matches what the claim says. This might be because grains contain substances that block selenium absorption.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Associations between food group intake and serum levels of selenium and other essential and toxic trace elements in adults

Score: 47

DOI: 10.1007/s00394-026-03922-y

Similar Assertions

In healthy adults from Galicia, Spain, the amount of selenium in the blood changes more noticeably with dietary intake than the levels of zinc, copper, or iron, which stay relatively constant due to biological regulation. This makes selenium a more reliable indicator of whether dietary intake is sufficient.

47

0

74%

In healthy adults from Galicia, Spain, people who consume more dietary oil tend to have lower levels of selenium in their blood, which may be related to how fat in the diet affects selenium absorption or reflects broader dietary habits.

47

0

72%

People in Galicia, Spain, who eat more seafood tend to have higher levels of selenium in their blood, and those with sufficient selenium levels typically eat about four servings of fish per week.

47

0

71%