While it's still controversial which one is better, most recent studies show one definite advantage of vegetable protein over meat protein is that plant protein can help lower blood pressure. Those who consume a lot of vegetable protein have lower blood pressure readings.
Researchers at Imperial College London did a survey on nearly 4700 people from the UK, the US, Japan and China. They found that the more vegetable protein the subjects said they had, the lower their blood pressure.
The report published in the journal Archives of Internal Medicine suggested vegetarians tend to be lighter than non-vegetarians, and that the amino acids and magnesium found in plant protein may play roles in lowering blood pressure.
Since the study shows plant protein has some benefits that meat protein lacks, it is recommended we add some amounts of vegetable protein in our diet for better health. Good sources of vegetable protein include whole grains such as corn, wheat, oats, milo, barley, soya products such as tofu, soya milk, nuts and seeds like peas, beans, peanuts, almonds, pipe nuts etc. A well balanced diet including certain amounts of plant protein is definitely better than a diet that gets dietary protein from meat only.
Imperial College London
Archives of Internal Medicine
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