All About Vitamin A
Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids (Most notably beta-carotene). -- Wikipedia.
I was watching a BBC documentary that had scientific proof that over consumption of Vitamin A through pills at a high dosage over a long period of time can cause serious liver damage and cause osteoporosis in both men and women. Beware!
More than just eyes and skin: Vitamin A affects the heart
Vitamin A is important for heart development in embryos, but whether it has a role in maintaining heart health is unclear. A new study finds that the heart is able to respond to vitamin A and the amount of vitamin A present has an effect. However, whether the effects are beneficial or harmful is still a mystery. Ref. Source 2l.
Vitamin a and a high-fat diet increasing risk for obesity, diabetes
Vitamin A is an essential nutrient that the human body needs to function properly. But new research suggests that normal levels of vitamin A within a high-fat diet can negatively affect expression of liver genes associated with glucose and fat metabolism. Ref. Source 4w.