The best protein powder comes from FOOD!!! you do not need protein powders.

The best source of protein is through food. You should work on your diet, if you are a vegetarian or a vegan (I assume because of where you posted), the whole idea is to focus on your food intake and avoid things like supplements and vitamins... those things are for meat eaters. A can of beans, a box of tofu... one of those alone may make up as much as half of your daily need of intake. Mix veggies to form complete proteins, consume grains and soy products.

- - - - - - - - - - - - - - - - - - - - - - - - - - - 

Get a mass gainer. I don't know where you come from, so I can't advise exactly. However, I'd recommend going with Optimum Nutrition's mass gainer protein. Alternatively, buy a whey protein isolate and then supplement your carbohydrates yourself.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -- -

The best protein powder comes from FOOD!!! Real natural pure protein, like "spirulina powder" -that's its natural state, never take pills...-, that's a good idea. You can also eat seitan, which is pure protein, that is if you're not gluten intolerant -because it's all gluten-. I'm just the opposite, I NEED gluten, so seitan is one of my favourite protein foods.

For more calories, simply cook seitan or tofu or beans, with a good quantity of olive oil, sunflower oil or even coconut oil!!! That will give you the extra amount of calories you're looking for.

However, we don't need more than 30 g of protein a day. More is too much -unless your body really CRAVES it, that means it's doing something special inside and needs an extra... but that's not very common-.

- - - - - - - - - - - - -- - -- - - - - - - - - - - -- --- -

1g of protein expends 4 calories. Most protein powders range between 25-30g of protein per scoop ie about 100 odd calories.

If you want to get in more calories you'd have to look towards other sources such as a mass-gainer, although why not just eat high energy foods like peanut butter/figrolls/pastas etc to get these calories & feel fuller. As for what happy-hippie said, the average person requires about 50g of protein daily not 30g & this increases based on exercise levels, i need about 120g-140g for example. If you are vegan, pea & rice combo or soy protein powders are the best choices. Otherwise Whey if not. However protein powders are only a cheap & time-effective source of getting protein, if you can obtain the necessary amount through diet alone you do not need protein powders.