Who may have to choose their foods carefully to get all their high biological value proteins?
Vegetables do not usually contain all the necessary amino acids (low biological value). Vegetarians and Vegans must eat a wide variety of foods (e.g. plant proteins, beans and pulses) to make sure they are getting all the amino acids.
Some people choose not to eat meat for a variety of reasons and obtain all their protein from other sources. In recent years manufacturers have produced many meat-like products, called ‘meat analogues’, which mimic the sensory properties of meat and can be used to replace meat.