Studying Nutrition

Many, many, many, many years ago, I was ever so briefly a nursing student. (Yes, among many things, I am a nursing school drop out.)  I did well in the academics but I was a disaster doing the bedside work. One of the things I enjoyed learning about was nutrition.

And nutrition is still one of the things that I’m interested in. When I think about agriculture, a question arises.  What should we plant? Which leads me to the question of, what foods are better for people? How do we know? And one way of knowing is by studying nutrition.

I have been looking in libraries for a really good nutrition textbook.   I’m not interested in the latest diet or food fad, I want to know what mainstream nutritionists currently think.   (Okay, my nutrition education was from the 1970s, some things have changed since then.) I finally found one that I liked this winter, but then I left town for some traveling and returned the book.   Since I got back, I have been looking for that book, but it's no longer in the library and, stupidly, I didn't write the name of the book down. I went looking in the Queens library system catalog and did find something that looked okay in the catalog but turned out to be some kind of outline rather than a text.  (The book itself has the additional heading, “Student Note-Taking Guide”. Unfortunately, that part wasn't in the catalog.) Rather than just return it and try again, I decided to use it in conjunction with one of those ‘Idiot’s Guide’ books (which generally have decent information, even if the format is very commercialized and silly).  I figured between the two, I should get some halfway decent information. In the future, I may go looking for that good textbook again.

So what did I learn?   Here's some basics. First, there are six categories of nutrients: carbohydrates, fats, proteins, vitamins, minerals, and water.   Yes, water is a nutrient. The first three categories all have calories--as does a seventh non-nutrient, alcohol. Something that I did remember from my nursing years is that carbohydrates and proteins have four calories per gram, alcohol has seven calories per gram, and fats have nine calories per gram. All of the first six categories pay important parts in your diet.

Most of this stuff is common knowledge.   You want to get enough calories to thrive but not much more. Exercise as well as nutrition is important in maintaining your weight as well as your health. You need to get all your vitamins and minerals.  Eat plenty of vegetables. (Really. Probably the best piece of dietary advice I can give.) Drink plenty of water and get plenty of rest.

But a couple of things that aren't so obvious.  Your body needs sodium as well as potassium, but the ratio is important. You need to make sure that you are getting more potassium than sodium.   Fruit is a good source of potassium. Likewise, some fatty acids are essential, but you need to get more omega three than omega six. Fish is a good source of omega three, but for vegetarians like me, nuts and seeds (especially flax seeds and chia seeds) are also a good source.

Not all vegetables are alike.  I am a strong advocate of leafy greens (like kale, collards, spinach, and dandelion greens) and the orange veggies (like carrots, sweet potatoes, winter squashes, and pumpkin).  And, of course, you can never go wrong with broccoli.

Finally, for vegetarians and vegans, make sure that you get enough B12.  Unfortunately, the best way to do this is to take a supplement, since B12 is only found naturally in animal products.

Social change depends on strong, healthy people, and since the society I want to create is one that meets everyone’s needs, knowing what we need nutritionally is important.  And thus I study nutrition.

Quote of the Day: “... nutrition is the science of how the body uses food. In fact, nutrition is life.   All living things, including you, need food and water to live…. If you don't eat and drink, you’ll die. Period.” - Carol Ann Rinzler