Protein powder vs meat: which protein is better?

My clients ask me this one again and again: is there a real difference between a protein shake with water and a fresh piece of meat? There is, and it is mostly about what else comes with the protein.

Short answer: Beef and whey protein both contain a lot of essential amino acids, so both are first-class protein sources. Whole foods bring more vitamins and minerals, and plant foods add fiber and phytonutrients. Take protein powder if you want, but most of your plate should be fresh, less processed food.

Which protein powder to pick

There are several types: beef protein, vegan pea protein, whey and so on. I usually recommend whey. It is well studied, high in leucine and usually one of the cheaper ways to get protein in. If dairy does not agree with you, soy or a pea and rice blend works too.

Macronutrients and micronutrients

Every food is made of macronutrients and micronutrients.

• Macronutrients: protein, carbohydrate (including fiber) and fat. Fiber is a carbohydrate your body digests only a little.
• Micronutrients: minerals, trace elements and vitamins.

Macro means the bigger parts, micro the smaller ones. Some are added to a protein powder (you see them listed in the table on the pack). Some you find in an apple, some in beef. Every food has a slightly different mix, or different amounts.

And the micronutrients matter. Fruit, vegetables, legumes and whole grains bring fiber, vitamins, minerals and plant compounds (phytonutrients) that support digestion, health and your gut bacteria. Meat adds iron, zinc and B12. A shake gives you mostly protein plus whatever was added to it.

So you can keep getting protein from powder. But in your diet you want most of the food to be fresh, unprocessed, short shelf life stuff. More on that in my article on ultra-processed food.

What happens to protein in your body

Put simply, and not very scientifically:

• Fat breaks down into fatty acids. In that form it travels in the blood and the body works with it.
• Carbohydrate breaks down into glucose. That gets used, or stored in muscle, liver, fat cells and so on.
• Protein breaks down into amino acids.

Picture protein as a chain and amino acids as the links in it. Protein as a whole cannot enter the blood. It gets chopped up and reaches the bloodstream as amino acids.

The 9 essential amino acids

There are 9 essential amino acids. The body cannot make them, it has to get them from food. Animal foods are rich in them. Plant foods contain all 9 too, usually in smaller amounts, so vegans do best with a bit more protein and a mix of sources (legumes, soy, grains).

3 of them are in BCAA (branched chain amino acids): leucine, valine and isoleucine. Leucine in particular switches on muscle protein synthesis, but your body needs all 9 essential amino acids to actually build muscle. That is why BCAA supplements add little if you already eat enough protein.

Beef and whey protein both have a high share of essential amino acids per gram of protein. That makes both of them first-class protein.

How much protein per meal

About 30 to 40 g of protein from meat or whey covers the muscle-building response well for most people. Bigger servings can still add a little, especially after a full-body workout, so your daily total matters more than the exact amount per meal.

Protein targets are given in grams of total protein. Quality scores such as DIAAS show how well a source covers the essential amino acids. Most guidelines assume your protein comes mainly from high-quality sources: animal protein, or a mix of animal and plant. If you ate 30 to 40 g of protein from bread, you would formally eat the same amount of protein, but there would be fewer essential amino acids in it. Plant foods simply have a smaller share of them. Find your daily target in How much protein do you need, or use the protein calculator.

Plant vs animal protein: the newer data

Newer trials have found similar muscle gains on plant and animal protein when total daily protein intake was high enough. With plant protein you may need a bit more of it, or a mix of sources, to cover the essential amino acids. It could shake up the way we have looked at protein so far. I broke down a recent study in my article on plant vs animal protein.

Frequently asked questions

Which protein powder should I choose?

Whey. It is well studied, high in leucine and usually one of the cheaper ways to get protein in. If dairy does not agree with you, soy or a pea and rice blend works too.

How much protein in one meal is enough for building muscle?

About 30 to 40 g of protein from meat or whey covers the muscle-building response well for most people. Bigger servings can still add a little, so your daily total matters more than the exact amount per meal.

Is protein from bread as good as protein from meat?

Formally you eat the same amount of protein, but there are fewer essential amino acids in it, because plant foods have a smaller share of them. Newer trials, though, found similar muscle gains on plant and animal protein when total daily protein was high enough, so with plant protein eat a bit more of it or mix your sources.

What are essential amino acids?

There are 9 of them and the body cannot make them, it has to get them from food. Three of them, leucine, valine and isoleucine, are the BCAA. Leucine in particular switches on muscle protein synthesis, but your body needs all 9 to build muscle.

Further reading:

1) Plant vs animal protein: my breakdown of a recent study in plant vs animal protein

2) Daily protein targets: How much protein do you need

Martin Barna

Online nutrition and fitness coach. Since 2013 I have coached 600+ clients through fat loss.

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This article is for information only. It is not medical advice. If you have kidney disease, a milk allergy or another health condition, talk to your doctor before increasing protein or adding supplements.