Vegetarianism & Food scarcity

I always had this question in my mind, that if more than 95% of the people of the world eat non-veg and if a sizable portion of them were to convert into vegetarians, wouldn't that lead to shortage of vegetables and a galloping inflation in their prices. Well here's what i read in the book of vegetarianism by Swami Chidanand Saraswati.

• It takes 16 pounds of grain to produce one pound of beef, but takes a pound of grain to produce a pound of bread.
• Everyday 40000 children starve to death. Everyday we produce enough grain to provide every person on earth with more than 2 loaves of bread but it's being fed to livestock instead.
• Across the world, an average of 40% of the grain produced is fed to livestock.
• 1.4 bn people could be fed by the grain which is given to US livestock.
• One acre of fertile land can grow 40000 pounds of potatoes. That same acre can provide only 250 pounds of beef if it is used to grow grain for cattle feed.
• If you take 2.5 acres of land and use it to grow potatoes, you can fulfill the nutritional requirements of 22 people. If you use it to grow rice, you can fulfill the nutritional requirements of 19 people. But if you use it to produce chicken (including the food) you can fulfill nutritional requirements of 2 people. Even worse, if you use it to produce eggs or beef, you meet requirements for just 1 person. Can you imagine the irresponsible usage of the land when so many are starving?
• If meat eaters reduce their intake of meat by only 10 %, we could feed everyone who die of starvation.
• We could feed 10 billion people a year if we were all vegetarians. Much more than the human population.

A Buddhist saying goes thus, "The frog does not drink up the pond in which he lives." Aren't we behaving in the same way.

There is much more to write on the issue of vegetarianism including nutritional aspects, ecology, wastage of resources etc. but I'll save that for later.