Everything. Your health will suffer from it. Eggs raises your cholesterol level, which will create diseases in your body, long term. Possible diseases would be heat attack, stroke, arteriosclerosis, cardio-vascular diseses in general, diabetes, arthrosis, dementia, alzheimers, and so on and so on…. This was the negative effects on eating eggs… positive effects are: ähm, none.
Biotin deficiency but it’s so rare, recent studies says that egg yolk does not contain that much cholesterol to make the atherosclerosis and other diseases , so don’t be afraid, many people admit that you should not eat egg yolk , but the recent studies says that yolk is more nutritious than the white , also for muscle growth the yolk is the best , it contains more protein than the white one , many people says that when we drink the raw egg we got more muscle building, the reason is you are drinking the white and yolk together although the raw egg give you only 50% of its protein content , for this reason it’s more active for many people, unfortunately when they cook the egg then remove the yolk , although the whole egg give you 97% of its protein content.
When fried egg is consumed in excess, it elevate the cholesterol level which lead to atherosclerosis which may cause cardiovascular diseases like hypertension, stroke etc. When boiled egg is consumed it provide vitamin B7 which is biotin, this help to convert food we eat to glucose (for energy), produce fatty acid and activate protein/amino acid metabolism in the hair root and fingernails cells. Eat moderate to avoid over nutrition.