Nuts are an excellent source of protein (as well as peanut butter). Another way is to take supplements or protein shakes. I would recommend talking to your doctor before you try a different diet, just to make sure your body can handle it.
Hidden meat products are in apparently vegetarian products--for example Yoplait yogurt has gelatin in it which is derived from animal tissue. Hot Cheetos probably has pork flavoring (except the giant puffs). Also, vegetarians need to be careful not to overdo the simple carbohydrates (easy on the ice cream!) and get enough protein, iron, and vitamin B12.
Protein, calcium, iron, vitamin B12
Yes, not getting enough oxygen can and will make you drowsy, also, not getting enough oxygen can cause brain damage. - Heisenberg
effects of not eating enough nutritious food
Before planting yellow roses in your garden, make sure the area is getting enough sunlight and nutrients from the soil. You can contact your local greenhouse to ask for suggestions.
Small basil leaves can be caused by a lack of sunlight, inadequate nutrients in the soil, overcrowding, or insufficient water. Make sure your basil plant is getting enough sunlight, nutrients, space, and water to help it grow larger leaves.
The biggest reason for loss of hair after gastric bypass is lost of nutrients getting to the hair follicles. Make sure you are getting enough protein, it is recommended you get 60 grams of protein or more a day.
By eating a varied diet.
If you don't get enough nutrients you can get sick. The type of sickness depends on the specific nutrients you are missing. If the nutrient deficit is severe or long enough you can die.
While it is possible, it does not happen to much. Vegetarians juse need to make sure that they are still getting plenty of nutrients, proteins, and vitamins in their diet daily. This can easily be accomplished through a vegetarian diet, and there are also many multi-vitamin supplements that can help.
For vegetarians get all their nutrients from plants and dairy products. Unlike vegetarians, the non-vegetarians get a lot of nutrients from the meat. Hence the vegetarians are supposed to have a more balanced diet.
Your plumbago may not be blooming due to insufficient sunlight, improper pruning, or lack of nutrients in the soil. Make sure it is getting enough sunlight, prune it correctly, and consider fertilizing it to encourage blooming.