Does Safflower Oil Cholesterol Randomized Trial work?

Updated June 2026

Quick Answer

Safflower Oil Cholesterol Randomized Trial has evidence relevant to strength of evidence and what the studies can or cannot prove, but conclusions should stay close to the cited sources. One representative finding is: Effects of Canola Oil on Hepatic and Cardiometabolic Markers in Non‐Alcoholic Fatty Liver Disease: A Systematic Review and Meta‐Analysis

Key Takeaways

  • 01Effects of Canola Oil on Hepatic and Cardiometabolic Markers in Non‐Alcoholic Fatty Liver Disease: A Systematic Review and Meta‐Analysis [Ege Gündüz K (2026)]
  • 02Increased dietary LA has contributed to a pervasive imbalance in dietary-6 relative to-3 polyunsaturated fatty acids (PUFA) that has been proposed to affect the incidence and progression of chronic diseases [,,]. [Sergeant Susan (2026)]
  • 0313 14 15 16 17 18 19 20 n n n n n n Early guidance to increase dietary LA stemmed from the diet–heart hypothesis of the 1960s–1970s, which proposed that replacing saturated fats with LA-rich vegetable oils would lower serum cholesterol, thereby reducing the risk of atherosclerosis and coronary heart disease. [Sergeant Susan (2026)]
  • 04A re-analysis of the Sydney Diet Heart Study showed that replacing saturated fat with high-LA safflower oil markedly increased all-cause and cardiovascular mortality despite lowering cholesterol []. [Sergeant Susan (2026)]
The current Migaku evidence database contains 2 reusable source documents for Safflower Oil Cholesterol Randomized Trial. This answer focuses on strength of evidence and what the studies can or cannot prove. - Effects of Canola Oil on Hepatic and Cardiometabolic Markers in Non‐Alcoholic Fatty Liver Disease: A Systematic Review and Meta‐Analysis [Ege Gündüz K (2026); evidence level 1] - Increased dietary LA has contributed to a pervasive imbalance in dietary-6 relative to-3 polyunsaturated fatty acids (PUFA) that has been proposed to affect the incidence and progression of chronic diseases [,,]. [Sergeant Susan (2026); evidence level 2] - 13 14 15 16 17 18 19 20 n n n n n n Early guidance to increase dietary LA stemmed from the diet–heart hypothesis of the 1960s–1970s, which proposed that replacing saturated fats with LA-rich vegetable oils would lower serum cholesterol, thereby reducing the risk of atherosclerosis and coronary heart disease. [Sergeant Susan (2026); evidence level 2] - A re-analysis of the Sydney Diet Heart Study showed that replacing saturated fat with high-LA safflower oil markedly increased all-cause and cardiovascular mortality despite lowering cholesterol []. [Sergeant Susan (2026); evidence level 2] - 1 2 3 4 5 6 7 8 9 10 11 12 n n n Over the past century, shifts in agricultural practices toward the industrial production of commodity crops, particularly soybeans and corn, have transformed the global food supply and sparked a scientific and public health debate [,,,]. [Sergeant Susan (2026); evidence level 2] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.

Sources

  1. Effects of Canola Oil on Hepatic and Cardiometabolic Markers in Non‐Alcoholic Fatty Liver Disease: A Systematic Review and Meta‐Analysis
  2. Effect of Dietary Linoleic Acid Intake on Eicosapentaenoic Acid Status and Lipoxygenase-Mediated Oxylipin Biosynthesis in Healthy Adults: A Randomized Controlled Trial