“Traditional food often contains a wisdom that science takes decades to fully understand.”
— Adapted from observations by Michael Pollan
Introduction
There are certain foods that used to be completely normal in family cooking and slowly disappeared from everyday meals. Bone marrow is one of them.
Perhaps because we now tend to choose lean, tidy cuts of meat. Perhaps because traditional slow cooking became less common. Or perhaps because animal fats ended up surrounded by oversimplified nutrition messages.
The reality is that bone marrow — the soft tissue found inside bones — has been part of human nutrition for a very long time. Not as a trendy “superfood”, but as an ordinary, nourishing ingredient closely linked to traditional cooking and food waste reduction.
This week I made ossobuco with mashed potatoes and added the marrow from the bones directly into the vegetable sauce before blending. Not because I was trying to make the dish “functional” or fashionable. Simply because it was there, it added flavour, and it seemed sensible not to waste it.
What exactly is bone marrow?
Bone marrow is the soft tissue found inside certain bones, especially long bones such as the femur and cuts commonly used for broths and stews.
It has a rich, silky texture and a deep savoury flavour. When slowly cooked, it melts into sauces and adds body and richness to dishes.
For generations it has been used in many traditional cuisines:
- in stocks and broths
- in slow-cooked stews
- spread over toasted bread
- stirred into sauces
- in dishes
For a long time, it was not considered unusual or luxurious — simply a practical and nourishing ingredient.
Why bone marrow is attracting attention again
In recent years, bone marrow has started appearing again in nutrition conversations and restaurant menus. Sometimes sensibly, sometimes with exaggerated health claims.
There is no need to turn it into a miracle food to recognise something quite straightforward: bone marrow is nutrient-dense and energy-rich.
Especially in a world where many people:
- rely heavily on ultra-processed foods
- fear all animal fats indiscriminately
- rarely cook traditional recipes
- choose only lean cuts while discarding nutrient-rich parts of the animal
Bringing back ingredients such as bone marrow may help reconnect us with a more complete and less industrialised way of eating.
Nutrients in bone marrow
Bone marrow is mainly made up of fat, but that does not automatically make it unhealthy or nutritionally empty.
It contains:
- naturally occurring saturated and monounsaturated fats
- cholesterol, which plays important roles in the body
- small amounts of fat-soluble vitamins
- compounds naturally present in animal tissues
- a concentrated source of energy
When used in slow-cooked dishes alongside bones, tendons and connective tissues, it is often part of meals that also provide:
- collagen
- glycine
- minerals released during cooking
- high-quality protein
And this is important: the nutritional value of bone marrow depends heavily on the overall dietary context.
Bone marrow eaten occasionally as part of a home-cooked meal with vegetables and quality ingredients is very different from an overall diet dominated by ultra-processed foods.
The problem with demonising all animal fats
For decades, nutrition advice often reduced animal fats to something inherently harmful.
Traditional foods were replaced by low-fat processed products, industrial spreads and highly refined alternatives marketed as healthier choices.
Today, nutrition science paints a far more nuanced picture.
The effect of a food depends on the wider dietary pattern, lifestyle, metabolic health and food quality overall.
That does not mean bone marrow should be eaten in huge amounts every day. But it also makes little sense to treat it as automatically dangerous.
Bone marrow is also about culture and cooking
Perhaps the most interesting thing about bone marrow is not only its nutritional profile, but what it represents.
Using ingredients like this reconnects us with:
- slower cooking
- reducing food waste
- traditional family recipes
- using the whole animal
- appreciating natural flavour
And honestly, that matters too.
Because healthy eating is not only about nutrients and numbers. It is also about how we cook, how we eat and the relationship we build with food.
Simple ways to use bone marrow at home
It does not need to be complicated.
Some easy ways to use it:
- stir it into stew sauces
- add it to homemade broths
- cook it slowly with vegetables
- serve it on toasted sourdough with parsley and sea salt
- use marrow bones to enrich soups and stocks
In dishes such as ossobuco, it blends naturally into the sauce and adds incredible depth and flavour.
It is also often far more affordable than many premium cuts of meat.
So, is bone marrow worth eating?
I think it can absolutely have a place in a balanced, traditional real-food diet.
Not because it is magical.
Not because we should become obsessed with it.
And not because any single ingredient can compensate for an otherwise poor diet.
But because it reflects a more grounded and less industrialised approach to food.
For generations, people used these parts of the animal not only out of necessity, but because they understood how to cook in a practical and nourishing way.
And perhaps there is still something valuable in that.
Glossary
Bone marrow: The soft tissue found inside certain animal bones.
Monounsaturated fats: A type of fat also found in foods such as olive oil and avocado.
Collagen: A structural protein naturally present in connective tissues, skin, bones and joints.
Glycine: An amino acid commonly found in animal connective tissues and bone broths.
Referencias y Evidencia Científica
- Harvard T.H. Chan School of Public Health — Dietary fats and health
- NIH — Bone marrow adipose tissue and metabolism
- Advances in Nutrition — Dietary patterns and ultra-processed foods
- Traditional Foods Conference Proceedings — Nose-to-tail eating traditions
- FAO — Sustainable diets and traditional food systems