Beef jerky is primarily protein, but it has a lot sodium. You could also look into some protein supplement shakes. If you get a good pure one you won't get much in terms of carbs and fats.

If you want a snack you can complement your protein intake with some protein found in diferrent nuts and seeds, such as almonds, or pumkin seeds

But you can also look into protein shakes like bookblogger says and/or protein bars.

I looked into this at one point and you really have to go to things like whey powder for high protein & low everything else. But I wouldn't worry too much about protein intake. Most of the world (including Europeans) eats waaay less protein per day than a typical North American and does okay.

I'm a sucker for beef jerky. Good jerky is made from the best cuts of meat, but it often has a TON of sodium.

Eggs are a great, clean source of protein too!

I eat Nutrilite Protein Bars... there great. 21 grams of protein, sweetened with stevia, 1 gram of sugar, no artificial flavors, colors or preservatives, and no high fructose corn syrup and hydrogenated oils. Oh and ZERO (0) calories!!! And they taste great. The link is below http://www.amway.com/ICE/Shop/Product/Product.aspx/NUTRILITE-Protein-Bars-Cinnamon-Bun-Flavor?itemno=110537 or you can do protein shakes.

Eat 2-3 slices natural deli turkey or natural turkey jerky, these are yummy treat has all the qualities and proteins.

http://www.astermeds.com

Tuna is very high in protein while being pretty low in fat, carbs and fiber.

You can make your own protein bars at home - that way you can control what goes into them. I love doing this. Try googling for some good recipes!

I take Vi-Shape Shakes. High in protein and fiber, less than a gram of sugar and 23 vitamins and minerals. Plus they taste great. You can find info here:
www.shapeupdesmoines.com

It has been known for years that if you want to build muscle body, we need to eat foods that contain lots of protein. Proteins form the basis of all muscle development, without which the body will not grow. The amount of protein that we consume every day can affect our posture.

In choosing protein sources we need to consider biological value. Biological value is the actual amount of food protein that the body can be utilized for protein synthesis. Basically, it shows how much protein your body can actually be used to build muscle. Biological value protein range is between 50% and 100%. The higher the biological value the better.

Sources of protein
1. Chicken

For years, chicken has become the staple diet of muscle builders. Chicken, boneless and skinless, containing about 25% protein. It has a high biological value of 79.

Chicken is a good choice for a meal any time of the day. It is recommended to eat at least one portion (150-300 grams) of chicken every day. Be sure to buy chicken without the skin because the skin is very fatty and high cholesterol.

2. Fish

Fish is not only a good source of protein to build muscle, but also very good for overall health. Fish is full of essential fatty acids and omega-3. Fish, chicken, contains about 25% protein but has a slightly higher biological value is 83. Fish is very versatile and can be cooked in a variety of ways.

3. Cattle

Beef is an excellent source of protein that contains about 25% protein. Beef also has a number of vitamin B-12, zinc and iron are essential for keeping the body healthy and build a strong immune system.

There are different types of beef cuts available and minced beef. It is important to choose lean cuts of beef to buy. Fat in meat add extra calories for food that is not a good idea if we want to build muscle.

We need to try to put beef in the diet at least 2-3 times per week. This will ensure we have sufficient amino acids in the body to create the right conditions for building muscle.

4. Eggs

Eggs are the best protein source is second only to meat protein. Eggs have a very high biological value and omega-3 is very high. Omega-3 acids can increase the effectiveness of the immune system, helps recover more quickly from exercise to build muscle.
Almost all of the proteins in the eggs contained in the egg white. Eggs often get a bad reputation because of high cholesterol. Eggs are high in cholesterol but only if eaten whole. Much cholesterol contained in the egg yolks, not the whites.

5. Dairy products

Most dairy products are good sources of protein. But some of them are also very high in fat. Two of the best sources of protein milk cheese and skim milk. These products are not only low in fat and high in protein, but they are also a source of calcium. With each serving of cheese or skim milk we receive about 150 mg to 350 mg of calcium. Calcium is essential for building strong bones and prevent bone-related diseases. Calcium has also been said to play an important role in muscle contraction.

The protein found in milk consists of about 80 percent casein and 20 percent whey, which produces a high biological value and easy to digest milk. Most of skim milk contains about 3.5 percent to 5 percent protein. So from 250 ml of milk we can get up to 15 grams of protein is easily digested.

Each protein foods that have been mentioned have their own advantages, there is no "best protein to build muscle." If we want to create the optimal conditions for the body to build muscle we need to eat all protein sources.

Another thing that must be stressed is that we need to eat protein at the optimum time. This means feeding the muscles when they need it and keep protein levels high throughout the day. We have to divide your protein intake throughout the day in 6-7 meals. Also make sure you get protein immediately after exercise.

Finally, do not forget to consume carbohydrates and calories. We need to eat carbohydrates to grow and make sure we have enough energy to do the exercise. Eating more calories is the key to progress, if we burn more than we eat, we will not grow.

Reference:
http://medicalera.com/3/21954/melihat-lebih-dekat-makanan-tinggi-protein