Reddit mentions of Doctor's Best Fully Active B12 1500 mcg, Non-GMO, Vegan, Gluten Free, Supports Healthy Memory, Mood and Circulation, 60 Veggie Caps

Make sure to take B12 supplements, your brain literally does not function correctly without it. It's possible to get enough from diet alone but it's pretty difficult. Don't mess around with your brain, a supplement is 4 cents a day. Honestly even meat eaters should do it.

Here's the recommendations for B12 for a normal person.

> Eat two servings per day of foods fortified with at least 2 to 3.5 mcg of vitamin B12 each. You’ll need to eat these servings at least 4 hours apart to allow for optimal absorption.
Take a daily supplement providing 25 to 100 mcg of vitamin B12
Take a supplement providing 1,000 mcg of vitamin B12 twice per week. This is for cyanocobalamin.

> For those who prefer to take methylcobalamin, it’s likely that 1,500 mcg per day would meet needs. But again, it’s difficult to make specific recommendations about this.

Some brands: Deva, Doctor's Best, Now Foods have good reviews.

Methyl and Cyano are different forms of B12 and both are fine. Vegans use both; for which one is better, I have no idea. They have slightly different dosage recommendations. BUT since you're low, I would take any of the brands I listed daily. Go again in 3 months to see if your levels have changed. I get B12 from a 1000mcg cyanocobalamin 3/week, and eat fortified foods like nutritional yeast and soy milk.

This might save you some money https://www.amazon.com/gp/aw/d/B008NIHCZC/ref=mp_s_a_1_11_a_it?ie=UTF8&qid=1542908423&sr=8-11&keywords=vegan+b12&dpPl=1&dpID=413l9HxKugL&ref=plSrch

It is. Every time I compare my (vegan) grocery bill to my husband's (non-vegan) grocery bill, mine comes out cheaper. Maybe if I exclusively ate mock meats they'd be closer in price, but beans and lentils are cheaper than even chicken and ground beef. I suppose I do eat more veggies, but I eat a wider variety and tend to stick to the cheaper ones, whereas he prefers tomatoes and peppers, which get kind of pricey. Nuts are expensive, which is why I stick to walnuts (generally the cheapest) unless I feel like splurging. As far as supplements go, I do spend more than him there, but he doesn't exactly have to take prenatals, so that isn't a fair comparison. The only thing vegans need to supplement is B12. I suggest this brand, since it's a two month supply for $3.56.

This one is less than $4. This is assuming you're in the US.

Edit: Sorry, I was on mobile, here's the correct link.