My mom is against me being vegan...?!

She's being negative because she's worried about you. Instead of fighting with her about it, enlist her cooperation. Tell her you'd like her to help you research some balanced vegan meals that you can prepare. Do your preparation before hand, and arm yourself with facts like how much protein, B12, calcium, etc., a still-growing girl needs. Then you can look at the nutritional content of various ingredients with your mom, and put together some options. This will do two things: reassure your mom that you can get all of the nutrition you need as a vegan, and show her that you're not just trying to be stubborn or rebellious.

I think your mom is worried that you're still growing and you won't be getting as much protein and calcium and vitamins. Next time she goes to the market, ask her to buy some tofu or some nuts or something vegan with protein, and some vitamins or calcium pills so that you stay healthy and aren't missing out on all of the good vitamins and proteins and stuff that will help you grow and be healthy.

Experience

Well I and probably all of my 50+ vegan friends are for you going vegan. I don't know but 1 VS. 50+ sounds like a losing argument. That of course doesn't mention their vegan friends and their vegan friends and all the other vegans not mentioned.

The idea of excluding — as far as is possible and practical — all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose; and by extension, promoting the development and use of animal-free alternatives for the benefit of animals, including humans and the environment. sounds like a damn fine idea to me.

If your mom doesn't like it too bad, it is not her choice. It is in your hands to live vegan not anyone else's. The trillions of animals on this planet don't like you not being vegan, thats for sure and I think they matter a whole lot more than one individual humyn.

vegan because animals are not property

I'm always surprised when parents aren't supportive. You think they would feel extremely proud that they raised a young women who has a lot of empathy and cares for beings other than herself.

That said, she is just full of misconceptions about veganism. You'll get everything you need on a vegan diet as long as you get enough calories.

These people who say you NEED milk are insane. They have been lied to for so long they don't even know what the truth is.

You should just eat plenty of the great plant foods available and you will be fine. Its hard for anybody to get B12 these days because of the use of heavy pesticides. You should take a daily veg multivitamin. I recommend that to all people of all diets, not just veg people.

Vegan

I became vegan shortly before I turned fifteen, which was about seven months ago. I was vegetarian for a year before that. I'm the same height as you, only about eight pounds heavier. I'm healthier than I've ever been.You should be just fine.

I suppose she is worried and just wants you to be healthy.Contrary to popular belief you don't need milk to be healthy. Things like broccoli have tons of calcium. You should also eat tofu and vegetables.

She just wants for you to get the sufficient amount of nutrients that you need since you are still growing. Just make sure to add a lot of protein to your vegetarian diet like beans.

She is paying the bills, buying the food and cooking it. When you start paying the bills you will have the freedom to do what you want.

She's concerned because she's your mom. Go see your doctor to prescribe a healthy vegan diet. At 14, you're still a growing girl. You need to prove to your mom that being vegan can still be healthy.

Just because she is your mom and she is worried. There are plenty of healthy and wholesome food such as tofu, that you can eat while being vegan.

Because you are young, you need a lot of nutrition right now since your body is growing, you NEED to drink milk and get protein

If she is worried about your health show her this: http://www.viva.org.uk/guides/Wheat-Eate…

Eat her then

As others have said, it is her job as your mother to be concerned for all aspects of your health, including what you eat, and also, by the way, including your ethical, spiritual, and religious decisions.

As others here have NOT so far mentioned, it is your job as a 14-year-old to listen to your mother, to take very seriously what she says, and ultimately to obey her to the greatest extent you can. There is a limit to how much you are entitled to make your own decisions.

Tell her your reasons for the changes you would like to make in your diet, but be respectful about it, and be aware that the decision of how to foster your health is, for the time being, still hers. I know that you feel a lot more mature than the little kid who used to say, "I don't wanna take that medicine! It tastes yucky!", but to your mother, that's the person you used to be just a short time ago. It's natural that she's skeptical about whether you are ready to make sweeping, life-changing decisions about something that is debated even among people with MD's and PhD's.

I suggest that you not offer as evidence the fact that "lots of kids I know are going vegan." (This is a common error in debates, offering evidence that's convincing to you, instead of to the other person.) She is not going to consider them any more expert than you. Instead, talk together with your mom to your family doctor. The doctor may be able to lay her concerns to rest and give her concrete advice about how to plan a healthy vegan diet. On the other hand, the doctor may advise a compromise for the time being.

Well I and the 5.6 billion people who eat meat dairy and eggs are with your Mom. I don't know but 5.6 billion against maybe 20 million at most sounds like a losing proposition to me..

Your Mom is not being negative, she is being worried as any good mother would, that's it. And armed the fact that there are some idiots like the one who posted something about him and his 50 friends who fancy themselves as "vegan activists", she has some good reason to because people like these may have been poisoning your mind with false information and taking advantage of you. However you cut it, an adult male and 50 of his friends have no business telling a 14 year old girl to totally ignore her mother and live the way he does instead.
"I really want to go vegan" is not a valid argument in any intellectual debate. She is the authority, you have to prove to her why turning vegan is good for you and why she should allow to become one. Parents are not in any obligation to provide what their kids want, they are obliged to give what they need. And "support" is not merely saying yes to every want and whim a child cries for , often it also means saying no.

Animals are property. No amount of self serving though meaningless delusional one liners in order to appear smart. cool and radical is going to change that FACT

My guess is that she doesn't want you turning into the "typical" vegan- smug, condescending, self-delusional, and hypocritical, like most of the vegans that post on yahoo answers.
I wouldn't want that for my daughter, either.