Many experts do not reccomend eating beef, claming it is hard on the digestion. But beef is considered as lean meat.
Thanks to this character in the market you can by beef at the same cost as pork but this depends on the type if joint you want.
Experiments, done by Russian experts, approve beef. In lean meat like beef there is less fat than in chicken.
If chicken was fed with corn - In 100g of chicken there are 129 calories and 4.8g saturated fats. But in beef -100g there are 135 calories and only 4.5g saturated fats.
Beef contains three times more iron and almost four times more of zinc, than is necessary for the immunity.
Earlier an artical written stated, that eating meat in the middle ages 2 times a week helps to support stable organism. These were the results of an Japanese expirimment. They claim, that eating meat increases the number of proteins and improves our lives.