Trans fatty acids and saturated fatty acids are known to increase the levels of low-density lipoprotein (LDL) cholesterol in the blood:
- Trans Fatty Acids: These artificially produced fats, found in hydrogenated oils and processed foods, are strongly linked to an increase in LDL cholesterol and a reduction in high-density lipoprotein (HDL) cholesterol, increasing the risk of cardiovascular diseases.
- Saturated Fatty Acids: Found in animal fats and certain plant oils, these fats also contribute to increased LDL cholesterol levels, although their impact is less severe than trans fats.
On the other hand:
- Omega-3 Fatty Acids: These polyunsaturated fatty acids, found in fish and flaxseed, are known for their heart-protective effects and reduce triglycerides and LDL cholesterol.
- Conjugated Linoleic Acids: These naturally occurring trans fats, found in dairy and meat, have been suggested to have neutral or even beneficial effects on cholesterol levels.