I have a strange vegan diet in that when I spend my own money, I tend to buy vegan products. However, if other people offer me meat, I feel it is too rude to turn it down, so I eat it anyway. This issue came up when I was recently at a New Years barbecue that served only meat.
My vegan diet is quite simple. When I eat out, there is usually a vegetarian or vegan option, so I choose that. Today I ate out at an Indian restaurant and had a number of vegetarian options.
The topic of nutritional deficiency is never an issue with me. Even when I was an omnivore I always took a multivitamin pill and fish oil pill at night. I will continue to do this. Once my supplies of multivitamin and fish oil run out, I'll just need to purchase vegan multivitamin and vegan omega 3 pills.
Before I got serious about being a vegan, I went to the gym and found myself trying to get protein from meat, milk, and whey. But now I simply replace all this with a vegan protein powder.
One vegan product I've been drinking is almond milk, which is an excellent replacement for cows milk. I purchase my almond milk from Coles. It tends to cost $2.50 per litre, which is more expensive than cows milk at $1.00 per litre. I buy sweetened almond milk because it tastes better. I know it has added sugar in it, but each glass of almond milk only contains 3 grams of sugar in it compared to cows milk, which contains 9 grams per glass, so sweetened almond milk is already low in sugar. The unsweetened almond milk has less than one gram of sugar per glass and, in my opinion, doesn't taste nice. I figure 3 grams of sugar per glass is worth it.
I have tried the Coles brand rice milk, which is cheaper at $2 per litre. However, rice milk has a sugar content similar to that of cows milk. Rice milk also doesn't taste nice.
Soy milk is even cheaper than rice milk, around $1.50 per litre, but soy does not taste as good as almonds, and soy is a very controversial plant that is thought to disrupt hormones. The science on this is very fuzzy. There are thousands of medical studies that show soy is harmful, but there are also thousands of medical studies that show soy is harmless. It is sad that science is not free from corruption, but we need to do the best we can in this imperfect world. I drink soy milk whenever I order a coffee, but otherwise I avoid it.