Milk is for babies. Human beings are the only species that drinks milk into adulthood and besides that we prefer to drink the milk of another species (enslaved cows and goats), and we have come to consider it normal when, it is actually a pretty perverse form of sexual abuse!
If we weren't so dirt-conscious, we would obtain adequate vitamin B12 from soil, air, water, and bacteria, but we meticulously wash and peel our vegetables now - and with good reason, as we can't be sure our soil is not contaminated with pesticides and herbicides.
Today "aged" foods like sauerkraut, miso, and tempeh are fermented in hygienically sanitized stainless-steel vats to assure cleanliness, so we can no longer be sure they will provide us with the B12 we need. Vegans should not mess around with this issue.
Yes, all of life is sacred, including plants; and yes, there is research that demonstrates that plants have feelings - they feel it when their leaves or stems are ripped - and there is scientific evidence that while plants do not have brains and nervous systems like animals, they nevertheless actively work to ensure their survival - they want to live, thrive, reproduce, evolve.
The best we can do is strive to minimize the amount of harm we cause by living. We need to eat in order to live, and there is no moral or ethical code that dictates that we should refrain from eating and allow ourselves to die for some higher purpose.
As humans, we do get to choose what we eat, and when we choose to eat a plant, we are eating (i.e., harming) just that plant, plus indirectly whatever nutrients that plant consumed over its lifetime (and we are also harming whatever beings may have been living on that plant or who were injured or killed in the harvesting process). But when we eat an animal, we are eating not just that animal, but also indirectly all of the plants and other beings that that animal ate over its lifetime - those plants became the flesh that we eat.
Some well-to-do parents may say, "I have a right to have as many children as I want because I can take care of them." That may be so, but can the Earth take care of them?
Farms, whether small or large, are places where slaves are kept. The animals are fattened up to be eaten, or exploited for their ability to make honey or milk, or for their fur, wool or body parts; they are kept as breeders to produce more animals who can in turn be exploited and ultimately sold, slaughtered, and eaten.
Some people may argue that if the animals are treated humanely prior to being slaughtered, this justifies their confinement and slaughter. Is it ethical to rob beings of their freedom but give them a comfortable prison and provide them with food until they become fat enough to be slaughtered? Any way you look at it, farms are places where animals are kept in preparation to be slaughtered and ultimately eaten as food.
By choosing to be kind instead of cruel, we can break the karmic chain of reacting to violence with more violence, contributing to a more peaceful future for everyone.
Knowing the truth about the hell-realms that animals have to endure, it would be wise of us to do our best now not to plant the karmic seeds that would cause us to be reborn as an animal in one of those hell realms.
Choosing to be kind rather than to be cruel benefits everyone.
If yogis are to come to the realization of the interconnectedness of life, then we must free ourselves from the conditioning that has caused us to think it is all right to exclude all the other animals from our own goals of peace, freedom, and happiness.
We must stop viewing ourselves as separate and disconnected from the rest of life, as if we are a special case and the laws of nature or karma do not apply to us.
By working to alleviate the suffering of animals you are working at the cause level of human suffering.
Fishing is not a benign activity; it is hunting in the water.
Fishing is taking a huge toll on the planet's ecosystem. We are emptying the oceans, seas, lakes, and rivers as we fish them dry.
To meet the huge consumer demand for fish, the industry can no longer rely on hunting wild fish. Now we are doing to fish what was done to wild cows, sheep, goats, chickens, and ducks thousands of years ago: we are confining them in holding pens.
Today's fishing industry supplies land farms with fish as well. Over fifty percent of the fish caught is fed to livestock on factory farms and "regular" farms. It is an ingredient in the enriched "feed meal" fed to livestock. Farm animals, like cows, who by nature are vegans, are routinely force-fed fish as well as the flesh, blood, and manure of other animals. It may take sixteen pounds of grain to make one pound of beef, but it also takes one hundred pounds of fish to make that one pound of beef.
Lions and other carnivorous animals do eat meat, but that doesn't mean we should. They would die if they didn't eat meat. Human beings, in contrast, choose to eat meat; it isn't a physiological necessity.
In fact, we are designed anatomically to be vegetarians.
Lions and other carnivorous animals do a lot of things besides eat meat. They live outdoors, not in houses; they don't wear clothes or drive around in cars; they usually sleep for many hours after eating a meal. Why cite just one of the many things that they do and argue that we should imitate them? This doesn't make much sense.
It is true that every being is enjoying life or suffering as a direct result of his or her own past actions. The animals in the factory farms may have been meat-eating human beings in a previous birth; we don't know, and it is not our place to judge.
There are many activities that human beings have been doing "forever." We might argue from that perspective that eating meat should be allowed to continue. Men have been raping women for thousands of years; does that mean that it is normal and should be allowed to continue?
Is it really that much better to make friends with animals before you kill them than to treat them as nameless, faceless objects before you kill them? From a yogic point of view, one must weigh the karmic consequences of perceiving others as mere objects to be used and the consequences of profiting from the suffering of others.