When people think of high-protein foods, they usually picture meat, eggs or dairy products first. However, caviar is often overlooked despite being one of the most protein-rich natural foods available. Sturgeon caviar contains around 27–29 g of protein per 100 g, which places it among the most nutrient-dense seafood options.

To better understand how caviar compares nutritionally, it helps to look at its protein content alongside other familiar foods.

Food

Protein per 100 g

Chicken breast

approx. 31 g

Tuna

approx. 29 g

Caviar

approx. 27–29 g

Salmon

approx. 20–22 g

Almonds

approx. 21 g

Eggs

approx. 13 g

Low-fat quark

approx. 12 g

Lentils

approx. 9 g

Protein Content of Caviar

On average, caviar provides around 27–29 g of protein per 100 g, making it one of the richest animal-based protein sources.

The protein found in caviar has a high biological value, as it contains all essential amino acids required by the human body. These amino acids play a key role in:

  • muscle maintenance and growth
  • cell regeneration
  • metabolic processes

In addition to protein, caviar is also a valuable source of important micronutrients such as:

  • vitamin B12
  • omega-3 fatty acids
  • iron
  • selenium

Thanks to this combination, caviar is not only protein-rich but also nutritionally well balanced.

How Much Protein Is in Salmon Caviar?

Salmon caviar (red caviar) is also particularly high in protein. On average, it contains around 30 g of protein per 100 g, slightly more than many types of sturgeon caviar.

The exact amount varies depending on the fish species and roe composition. In addition to protein, red caviar provides omega-3 fatty acids, vitamin B12 and trace elements that support a balanced diet.

Protein Levels in Different Types of Caviar

Not all varieties of caviar contain the same amount of protein. Differences mainly depend on the fish species and processing methods.

Type of caviar

Protein per 100 g

Beluga caviar

approx. 27 g

Ossetra caviar

approx. 28 g

Kaluga caviar

approx. 27–29 g

Siberian sturgeon caviar

approx. 28 g

Salmon caviar

approx. 30 g

Trout caviar

approx. 29 g

Salmon caviar often contains slightly more protein than traditional sturgeon varieties. Black caviar, however, is particularly valued for its omega-3 fatty acids and vitamin B12 content.

Both red and black caviar therefore rank among the most nutrient-dense seafood delicacies available as natural protein sources.

Is Caviar a High-Quality Source of Protein?

Thanks to its complete amino acid profile, caviar is considered a premium animal-based protein source.

Unlike heavily processed protein products, caviar delivers protein in a natural form while also supplying essential micronutrients.

Key advantages of caviar as a protein source include:

  • complete amino acid profile
  • good digestibility
  • naturally occurring omega-3 fatty acids
  • high vitamin B12 content
  • trace elements such as iron and selenium

These characteristics make caviar a distinctive alternative to more common high-protein foods.

Both black and red caviar can therefore be a valuable addition to a nutritionally balanced diet.

Frequently Asked Questions

How much protein does caviar contain per 100 g?
On average, caviar contains around 27–29 g of protein per 100 g.

Is black caviar high in protein?
Yes, black caviar is one of the most protein-rich seafood delicacies and also provides beneficial omega-3 fatty acids.

Does salmon caviar contain more protein than sturgeon caviar?
In many cases, salmon caviar contains slightly more protein, while sturgeon caviar stands out for its balanced nutrient profile.

Is caviar a natural protein source?
Yes. Caviar provides naturally occurring protein without industrial processing and is considered a high-quality animal protein source.

Is caviar suitable for a high-protein diet?
Because of its high protein content, caviar can be a useful addition to a balanced, protein-rich diet.

Last update: 21.04.2026