If you feed male rats the same cooking oil over and over again after heating it multiple times, their main artery walls get thicker and stiffer, which might lead to high blood pressure.

14

Pro

0

Against

Evidence from Studies

Supporting (1)

14

Community contributions welcome

14

The role of repeatedly heated soybean oil in the development of hypertension in rats: association with vascular inflammation

Cohort Study

Animal

2012 Oct

The study gave rats oil that was reheated many times, and their artery walls got thicker and their blood pressure went up — just like the claim said.

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

The role of repeatedly heated soybean oil in the development of hypertension in rats: association with vascular inflammation

Score: 14

DOI: 10.1111/j.1365-2613.2012.00839.x

Similar Assertions

Heating soybean oil over and over again might cause blood vessel damage in rats, making their blood vessels more inflamed and possibly leading to high blood pressure.

14

0

82%

If you keep heating soybean oil over and over and feed it to male rats for a long time, their blood pressure goes up by a third — but if you feed them fresh oil, their blood pressure stays normal. This suggests that overheated cooking oil might be bad for blood pressure in animals.

14

0

81%

If you keep heating soybean oil over and over and feed it to male rats for a long time, their blood vessels start making more of a protein called LOX-1, which is linked to inflammation and artery problems — this might lead to high blood pressure.

14

0

80%

If you heat soybean oil over and over and feed it to male rats, their blood vessels may tighten up more than they should, which could raise their blood pressure.

14

0

73%