Plant-based protein sources don't have as much protein. You can get enough protein through a plant-based diet, as long as it is well balanced. Plant-based protein sources:
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Protein is a macronutrient, a family of molecules made of amino acids. It is found in many different food items like meat and legumes. Even grains and leafy vegetables have some. Plant-based or animal-based proteins have varying amounts of protein and are not an even swap.
Protein is also colloquially referred to like food that used to be known as the "meat group" like fish or beef.
If you need a lot of protein in your diet, meat is a great way to satisfy that need.
If your diet consists of the same narrow food groups, it will not be a proper diet, regardless if you eat a plant or animal-based protein. If you eat a strict vegan diet, you will need to supplement Vitamin B12.
Look at the entire meal you end up with, and how that affects everything else you eat.
Because they are just one ingredient: avocado, lentils, blueberries, broccoli, almonds, etc.
The diet is abundant in fruits, vegetables, whole grains, legumes and olive oil.
It features fish and poultry—lean sources of protein—over red meat.
Red wine is consumed regularly but in moderate amounts.
If someone can find vegan food in pubs, restaurants, and fast food outlets, then the spillover to a vegan lifestyle will be easier.
However, there is a risk that nutrient deficiencies might develop over time that will not be immediately apparent, like tiredness with low B12 levels, infertility with low iron or osteoporosis from a calcium deficiency.