Researchers from the University of Toronto found that consuming full-fat dairy daily does not increase body weight, body fat, or blood cholesterol [1].
These findings challenge long-standing dietary assumptions that full-fat dairy products contribute to weight gain and cardiovascular risks compared to low-fat alternatives. The results may influence how health professionals approach nutritional guidance regarding saturated fats in dairy.
The 12-week clinical trial involved 74 adults [1, 3]. Participants consumed three servings of full-fat dairy per day throughout the intervention period [2]. The study aimed to test whether this specific dietary pattern led to weight gain or elevated cholesterol levels [1, 2].
Data from the trial showed no significant increase in body weight, body fat, or blood cholesterol [1]. Instead, the researchers observed improved blood pressure among the participants [2]. The inclusion of full-fat dairy was also associated with a higher intake of essential nutrients, specifically protein, calcium, and vitamin D [2].
The study was reported this month in August 2026 [2, 3]. The research team focused on the direct physiological effects of full-fat dairy to determine if the fat content acted as a primary driver for weight and cholesterol spikes [1, 2].
“Consuming full-fat dairy daily does not increase body weight, body fat, or blood cholesterol.”
This study suggests that the saturated fats found in full-fat dairy may not be as detrimental to metabolic health as previously believed. By demonstrating that weight and cholesterol remained stable while nutrient intake and blood pressure improved, the research indicates that full-fat dairy can be integrated into a balanced diet without necessarily increasing cardiovascular risk factors.
