Eating more saturated fat, like in butter or cheese, is linked to higher levels of bad cholesterol in people eating strictly controlled diets.
Scientific Claim
Higher dietary intake of saturated fatty acids (SFA) is associated with higher levels of low-density lipoprotein cholesterol (LDL-C) in controlled feeding studies.
Original Statement
“Higher intakes of SFA, dietary cholesterol and TFA were each significantly associated with higher LDL-C levels”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study explicitly uses 'associated with' and the design measures biomarker changes under controlled intake. No causation is implied, and the language matches the evidence level.
Evidence from Studies
Supporting (1)
Abstract 18256: Importance of Controlling Dietary Intake of Saturated Fat for Prevention of Coronary Heart Disease: Lessons From the Metabolic Ward Studies
When people ate more saturated fats in controlled experiments, their 'bad' cholesterol (LDL) went up — and when they swapped those fats for healthier ones, their LDL went down.