A bowl of oatmeal made with steel cut oats is one of my favorite breakfasts. Especially appreciated when it’s cold outside and I want something warm inside my gut.
Steel cut oats are the closest version to oats in their whole, unprocessed form. Those unprocessed oats are called oat groats. Making oatmeal with steel cut oats is a time intensive process so it’s understandable why most of my fellow Americans prefer the option of quick cooked oats. But nothing can match the flavor of a well cooked soft, chewy, deliciously nutty consistency bowl of steel cut oatmeal.
The ingredient I use to make a bowl of oatmeal reads clean and un-trafficked: water, steel cut oats, blueberries, strawberries, pecans, turbinado sugar, butter, salt. You can see the pecans if you look closely for brown edges peaking out from time to time between oats and fruits. The ingredients I use are mostly minimally processed except for the culinary processed ingredients – sugar, butter, salt.
In one of those rare moments of consensus what tastes delicious to me actually matches what the friendly food police would allow me to label healthy. Whole Grains, Fruit, Protein (pecans are now protein foods) qualify my bowl of oatmeal as food. And as long as I limit my serving size to one cup, those nutrients of concern (added sugar, sodium, saturated fat) comply with current “healthy” thresholds.
In today’s food marketplace, oatmeals come in different degrees of processing. At one extreme is my bowl of steel cut oatmeal – time consuming to make and labor intensive to source and prep. At the other extreme is off the shelf instant oatmeal – boil in a cup, just add water, no added sugar made with novel or artificial sweeteners, often fortified with folate, and definitively #UPF ultra-processed.
And that brings me to the food matrix and cellular / acellular nutrition.
VIEW FROM MY KITCHEN WINDOW
The USDA defines “food matrix” as the nutrient and non-nutrient components of foods and their molecular relationships to each other. In other words the food matrix is the cell’s molecular structure.
There’s a complementary concept floating in and out of certain European research studies that focuses on cellular nutrients. The logic goes something like this – nutrients that remain within the cell structure – cellular nutrients – take longer to metabolize and by extension are considered healthier than nutrients that have been extracted then added back in.
Here in the US, both enrichment and fortification are common practice. And both processes require adding isolated nutrients back into a food product. Both are examples of acellular nutrients. Acellular nutrients are rapidly and completely digested in the stomach and small intestines.
Does the body care are whether nutrients arrive in a cellular structure or if these nutrients are acellular? Here in the US, the answer is pretty consistently that it makes no difference. Moreover, folate fortification has good research data to support a clear health benefit.
What can be said with certainty however is that our gut evolved over the millennia to metabolism cellular nutrients, not acellular nutrients.