This topic needs to be thoroughly aired and seriously studied.
So much vested interest influences information from all sides. Certainly, a great deal of the criticisms levelled at the synthetic margarine product(s) are convincing and health risks are real.
With butter, the heart medical industry are still opposing “animal” fats, their conclusions also require assessment.
On the whole, it seems to me that butter is better.
- STUDY: Vegetable oils may be worse for your health than butter (wtvr.com)
- Pro Butter / Anti Margarine Expose (steinbergdesign.wordpress.com)