When you hear the word protein, you may think about some protein shake that promises massive muscles, or a high-protein diet craze. You may think that Americans were at a risk for not eating enough protein. In fact, most of us eat much more protein than we need. Protein is in many of the foods that we tend to eat on a regular basis.
This is a section which will help you to learn more about protein. You’ll find information about which foods have protein and what happens in case we eat more protein than we need.
All About Protein

All About Protein
Proteins are a part of every cell, tissue, as well as organ in our bodies. These body proteins are constantly being broken down as well as replaced. The protein in the foods that we eat is digested into amino acids which are later used in order to replace these proteins in our bodies.
Protein can be found in the following foods:
- meats, poultry, as well as fish
- legumes, including dry beans and peas
- eggs
- nuts as well as seeds
- milk as well as milk products, tofu
- grains, some vegetables, as well as some fruits, which provide only small amounts of protein relative to the other sources
Most adults in the United States are getting more than enough protein in order to meet their needs. It’s not possible for someone who is healthy as well as eating a varied diet to not get enough protein.
The different kinds of protein
Proteins are made of amino acids, which are the building blocks. There are 20 different kinds of amino acids which join together in order to make all types of protein. Some of these amino acids can’t be made by our bodies, hence these are known as essential amino acids. It’s essential that our diet should provide these.
In the diet, protein sources are labelled based on how many essential amino acids they provide:
- A complete protein source refers to one which provides all the essential amino acids. These sources are also called high quality proteins. Animal-based foods such as, meat, poultry, fish, milk, eggs, as well as cheese are considered as complete protein sources.
- An incomplete protein source is that which is low in one or more of the essential amino acids. Complementary proteins refer to two or more incomplete protein sources which together provide adequate amounts of the essential amino acids.
As an example, rice contains low amounts of certain essential amino acids. But, these same essential amino acids are found in greater amounts in dry beans. Similarly, dry beans contain lower amounts of other essential amino acids which are found in much larger amounts in rice. Together, these two foods are able to provide adequate amounts of all the essential amino acids which the body needs.
Amount of protein needed
You may wonder how much protein you require each day. Generally, it’s recommended that 10–35% of your daily calories should come from protein.
| Recommended Dietary Allowance for Protein | |
| Grams of protein needed each day | |
| Children ages 1 – 3 | 13 |
| Children ages 4 – 8 | 19 |
| Children ages 9 – 13 | 34 |
| Girls ages 14 – 18 | 46 |
| Boys ages 14 – 18 | 52 |
| Women ages 19 – 70+ | 46 |
| Men ages 19 – 70+ | 56 |
These are the examples of amounts of protein in food:
- A cup of milk contains 8 grams of protein
- Any 3-ounce piece of meat has 21 grams of protein
- A cup of dry beans has 16 grams of protein
- An 8-ounce container of yogurt contains 11 grams of protein
- Added together, these four sources would meet all the protein needs of an adult male. This doesn’t count all the other foods which add smaller amounts of protein to his diet.
Instead of just focusing on your protein needs, choose an overall healthy eating plan which provides the protein you need besides other nutrients.
In order to help you get the amounts of protein that you need:

Amounts of Protein
- Compare the amount of meat, poultry, fish, eggs, as well as legumes, nuts, and seeds you are eating per day to see if it matches with what is recommended. Thus, a 48-year-old female who is active for less than 30 minutes in a day needs about 5 ounces each day only from the meat as well a beans group. A few pre-cut slices of meat and poultry, like a pork chop or chicken breast, can be four to five ounces each. Thus it would be easy to eat too much.
- Save your money by not buying the protein supplements. In case you’re healthy, you probably get all the protein that you need from your diet.
In order to help you make lower-fat protein choices —
- Choose meats which are leaner cuts. Trim away any fat you can see. For chicken and turkey, remove the skin in order to reduce fat.
- Substitute pinto or black beans for meat in chili as well as tacos.
- Choose low-fat or fat-free milk as well as yogurt.
- Opt for cheese which is low-fat or fat-free.
- Choose egg whites or opt for the pasteurized egg white products.
Recommendations for a vegetarian
Since some vegetarians avoid eating all animal foods, they must rely on plant-based sources of protein in order to meet their protein needs. With some planning, a vegetarian diet can meet the recommended protein needs of adults as well as children easily.