How much protein do I need?!
How much protein do I need?
I have recently started a vegetarian diet and want to make sure I'm getting enough, but not too much since I would like to loose weight as well (about 20 lbs)...no I am not becoming a vegetarian to loose weight.
Answers:
The first answerer gave you false information. You do not need that much protein.
Here is what you need:
Women 11 to 14 yrs41.2g
Women 15 to 18 yrs45.4g
Women 19 to 49 yrs45.0g
Women 50 + yrs 46.5g
Pregnant women 51.0g.
Breast feeding women53 to 56g
"Being vegetarian does not mean your diet will be lacking in protein. Most plant foods contain protein and in fact it would be very difficult to design a vegetarian diet that is short on protein. Excess dietary protein may lead to health problems. It it now thought that one of the benefits of a vegetarian diet is that it contains adequate but not excessive protein.
Proteins are made up of smaller units called amino acids. There are about 20 different amino acids, eight of which must be present in the diet. These are the essential amino acids. Unlike animal proteins, plant proteins may not contain all the essential amino acids in the necessary proportions. However, a varied vegetarian diet means a mixture of proteins are consumed, the amino acids in one protein compensating for the deficiencies of another.
Most foods contain at least some protein. Good sources of protein for vegetarians include nuts and seeds, pulses, soya products (tofu, soya milk and textured soya protein such as soya mince), cereals (wheat, oats, and rice), free-range eggs and some dairy products (milk, cheese and yoghurt).
Different foods contain different proteins, each with their own unique amino acid composition. The proportions of essential amino acids in foods may differ from the proportions needed by the body to make proteins. The proportion of each of the essential amino acids in foods containing protein determines the quality of that protein. Dietary proteins with all the essential amino acids in the proportions required by the body are said to be a high quality protein. If the protein is low in one or more of the essential amino acids the protein is of a lower quality. The amino acid that is in shortest supply is called the limiting amino acid.
Protein quality is usually defined according to the amino acid pattern of egg protein, which is regarded as the ideal. As such, it is not surprising that animal proteins, such as meat, milk and cheese tend to be of a higher protein quality than plant proteins. This is why plant proteins are sometimes referred to as low quality proteins. Many plant proteins are low in one of the essential amino acids. For instance, grains tend to be short of lysine whilst pulses are short of methionine. This does not mean that vegetarians or vegans go short on essential amino acids. Combining plant proteins, such as a grain with a pulse, leads to a high quality protein which is just as good, and in some cases better, than protein from animal foods. Soya is a high quality protein on its own which can be regarded as equal to meat protein.
The limiting amino acid tends to be different in different proteins. This means when two different foods are combined, the amino acids in one protein can compensate for the one lacking in the other. This is known as protein complementing. Vegetarians and vegans eating a well-balanced diet based on grains, pulses, seeds, nuts and vegetables will be consuming a mixture of proteins that complement one another naturally without requiring any planning. Beans on toast, cheese or peanut butter sandwich, muesli with milk (soya or cow's), and rice with peas or beans are all common examples of protein complementing.
Previously, it has been thought that protein complementing needed to occur within a single meal. However, it is now known that this is not necessary as the body keeps a short-term store of the essential amino acids. A well-balanced vegetarian or vegan will easily supply all the protein and essential amino acids needed by the body."