The Goods Are Odd

To paraphrase Michael Pollan from his latest book, In Defense of Food, science has figured out pretty well now how to take apart food (going so far as the nucleus), but we are lousy at putting it back together. Though the foods we’ve fashioned over millennia do a great job keeping us at our best, physically and mentally, the modern age has tried to prove that science and technology can do better. Starting with the creation of baby formula in the 1930s, consisting of cow’s milk, wheat flour, malted flour, and potassium bicarbonate, modern food science has tried to understand the chemistry of food and nutrition to manufacture and market accordingly. And the real question with all this fiddling is, what’s the advantage?

Increasingly we seem to learn that there is mainly only disadvantage in the heavy processing and even the fortifying of foods. The more we learn about what whole foods have to offer, the more we seem to figure out that our refined-then-”enriched” versions are weak or even detrimental in comparison. A recent study of folic acid fortification shows flaws in the thinking that a vitamin is a vitamin is a vitamin no matter what the form or context.

Whole grains and greens are rich in folate, a B vitamin which has shown to be protective against colon cancer and other bowel issues and is just generally important for overall health. Folate deficiencies also cause fetal neural tube defects and thus pregnant women are urged to take a folic acid supplement. Folic acid is the supplement form of folate, and (doctors urging aside) does not impart the same positive results for cancer risk and whole-food derive folate. In fact as a recent NY Times article outlines, folic acid enriched foods may increase cancer risk.

This particular study lucked out with an easy control group (nutritional studies are difficult because control groups are hard to maintain) for folic acid consumption because Norway do not enrich their food with it like we do here in the US (lucky for the researchers and the Norwegians too apparently)

Turns out that folic acid enriched foods, mainly grains and cereals…um eaten particularly by children, increase cancer risk. So…no advantage there at all.

(Careful readers will note that the study of B vitamin consumption was originally aimed at understanding the relationship between B vitamins and heart disease, not cancer. In the previous post, on sick ancient Egyptians, this relationship was brought up as the likely cause of ancient cardio problems as the Egyptian Elite ate refined grains and were deficient in B vitamins that keep in check an amino acid that breaks down cell walls (which cholesterol goes in to fix…) I will not be at all surprised if the findings for b vitamins supplements (versus the stuff in whole foods) fails to show an impact on heart disease, but that will not be a good enough reason to discount the relationship until they look at food in the form it should be eaten. Maybe a start in the right direction to show the relationship to cancer)

Okay, so food in its most whole form provides all the nutrition we need without the fiddling from food scientists. Lesson: Avoid food with health claims and stick to those that have no package at all. That said, there are ways to “enrich” whole foods yourself and that is by pairing them with foods that help your body absorb all the goodness. And yes, this point loops back to the point about good fat and it being important and not causing heart disease.

I recently read author Nina Planck’s Real Food, What to Eat and Why. Of all of the points she made, I think the rundown of the usefulness of good quality whole fats in the diet was the most important. So I am just going to quote her verbatim: You can keep this all in mind with any catchy “holiday health hints” or such that tell you not to eat your turkey skin or eat low-fat dairy.

Eating protein with fat makes nutritional sense, because all food, and protein in particular , requires fat for proper digestion. As we saw with “rabbit starvation, without fat in the diet, digestion fails and you starve, but not for lack of calories. What is true of meat is true of all fat-and-protein pairs. They go together. Consider, for example, two near-perfect foods: eggs and milk. Both foods are a complete nutritional package, designed for a growing organism’s exclusive nutrition, and must contain everything the body needs to assimilate the nutrients they contain. The fats in the egg yolk aid digestion of the protein in the white, and lecithin in the yolk aid metabolism of its cholesterol. The butterfat in milk facilitates protein digestion, and saturated fat in particular is required to absorb the calcium. Calcium, in turn, requires vitamins A and D to be properly assimilated, and they are found only in the butterfat. Finally vitamin A is required for production of bile salts that enable the body to digest protein. Without the butterfat, then, you don’t get the best of the protein, fat-soluble vitamins, or calcium from milk. That’s why I don’t eat, and cannot recommend, egg white omelets and skim milk. They are low-quality, incomplete foods.

In each classic pair, fats help the body assimilate, use, or convert essential nutrient.

Fat and protein
Roast chicken (with the skin)
Eggs (with the yolks)

Fat and vitamins
Vitamins A, D,E and K are fat-soluble, eat them with fat

Fat and Beta-Carotene
Buttered carrots
Collards with fatback
Spinach salad with bacon
Flank steak with arugula
Beef with broccoli

Saturated fat and Omega-3 fats
Fish with butter or cream sauce

Saturated fat and calcium
Whole milk
Yogurt, cheese, and sour cream made from whole milk.

Each new piece of research reminds me that the most we should do with food is grow it in healthy soil, and prepare it in a way that our bodies can best use it. For some things that means raw (like dairy and fruit), eaten cooked or raw with some useful fats (like most veggies and meats), or fermented (particularly cabbage and other meant-to-ferment veggies as well as grains, ie sourdough, and some legumes ie soy)

Here are some particularly delicious whole meals: