Generally saturated fat is from animal products that have been raised commercially. This means the animals have been given estrogen and other hormones, antibiotics and fed grains that contain pesticides which bioaccumulate in the fat and are transferred directly to the individuals who eat them. They also eat large amounts of grain which does cause a shift in the percentage of saturated fat in their tissues. I believe that if one eats animals fed organic food and large amounts of grasses rather than grains like corn and they are not given chemicals to enhance their growth their meat will have much lower levels of saturated fat and it will not be as harmful. There is absolutely no question in my mind that butter is much healthier than margarine and healthy meat and poultry for most people will promote health rather than cause disease.
Organic eggs have far lower levels of saturated fat than non organic eggs.
This is primarily due to the fact that the chickens are fed grains. Just as in humans, the grains and high carbohydrate diet will force the chickens to increase their insulin levels. High levels of insulin will cause the liver to make saturated fats. This happens in chickens and humans and is one of the main reasons why carbohydrates like bread, pasta, cereal, fruit, rice, potatoes and cereals should be limited if one wants to avoid heart disease and cancer. One must also be careful when using the other fats.