The Short Version
The prevailing scientific consensus, including the 2025–2030 U.S. Dietary Guidelines and major cardiology bodies, supports that high saturated fat intake raises LDL cholesterol and cardiovascular disease risk — making the claim directionally accurate. However, the blanket phrasing overstates the evidence: harm is dose-dependent (typically above 10% of daily calories), depends heavily on what replaces saturated fat in the diet, and some large outcome-based studies have found no significant link to hard endpoints like heart attack or cardiovascular mortality.