Simply Real: Dropping
the Mic(ronutrients) Part 1
Something I’ve always thought was funny about so-called
“health food” is that there has always been a huge focus on what isn’t in the product: “fat-free”,
“low-carb”, “sugar-free”, are all those lovely buzzwords that seem to mean a
lot but really mean nothing. I look at food and focus on what is in it. The more good stuff it has,
the better! In general, when something is removed
from a food something just as bad (sometimes worse) has probably been added to it. Think preservatives, salt,
added sugars, and artificial flavors, colors, and sweeteners.
However, a lot of processed foods have vitamins and minerals added to them. What’s really funny about this
is that typically, the ingredients in that processed food used to have those
vitamins and minerals but – big surprise – they were removed or lost during
processing. Just because nutrients are present in food doesn’t mean that the
food itself is healthy. Remember our definition of health food!
Also, fun fact: your body actually absorbs and uses natural,
food-based vitamins and minerals better than those found in supplements or made
synthetically (what’s added to processed foods).
Remember that last week, I discussed macronutrients – the big energy-givers and body-builders. Today,
I’m going to discuss the little guys: micronutrients.
Micronutrients include vitamins and
minerals, which can get really, really not
simple. The truth is that the functions of many micronutrients in the body are
advanced chemical reactions that take a lot of studying to fully understand
(think 3 years of school and 6 chemistry classes…).
Some terms to know that will help you understand what vitamins
and minerals do include:
Catabolism:
breaking something down into smaller parts
Anabolism:
building something bigger out of smaller parts
Metabolism: how
the body uses catabolism and anabolism to break down macronutrients and use them to do things in the body.
Electrons: particles
which are moved around in the body to use energy
Antioxidant: we
need oxygen, but sometimes, extra oxygen floating around can cause reactions called
oxidation that produce harmful chemicals. Antioxidants pick up these oxygens
and prevent/reduce this from happening.
Free Radicals: the
harmful chemicals made when oxidation happens
Some other keys that will be helpful:
Plant-Based foods containing each nutrient are written in
GREEN! Because PLANTS.
Key-words that are
defined in this post and past posts are bolded.
Otherwise important information is written in RED because
it really is important for some people to read these things, and red is eye-catching.
Additional comments that are more or less relevant to the
information being discussed is shrunken down so that you can see how
unimportant it is – but read them anyways because I think I’m funny.
Vitamin
Name
|
Role in
the Body
|
Why is
that important?
|
Where to
find it in food!
|
B1
(Thiamin)
|
·
Breaks down macronutrients.
·
Helps with
moving electrons to send messages
through the nervous system.
|
·
Allows food to
be used for energy
·
Keeps nerves healthy
·
Healthy,
working muscles
|
·
Pork, probably other meats as well, but my textbook didn’t
include them because who really needs
meat besides tigers and sharks?
·
Sunflower
seeds, peanuts, peas, lentils.
|
B2
(Riboflavin)
|
·
Breaks down macronutrients
|
·
Allows food to
be used for energy!
|
·
Beef, dairy milk
·
mushrooms,
spinach, almonds
|
B3
(Niacin)
|
·
Breaks down macronutrients
·
Builds fatty
acids and cholesterol
|
·
Allows food to
be used for energy!
·
Fatty acids are
used to build the walls of body cells and keep nerves healthy. They are also
how our bodies store fat.
·
Cholesterol
helps absorb fat from food. Our bodies also use it to make Vitamin D!
|
·
Beef, chicken,
tuna, all other meats
·
mushrooms,
peanuts, broccoli, coffee
|
B6
(Pyridoxine)
|
·
Helps make
hormones serotonin, norepinephrine, and melatonin
|
·
These hormones
carry messages between nerves.
·
“Mood” and “sleep”
hormones.
·
Keeps body’s
clock working correctly
|
·
Beef, salmon
·
Bananas,
whole grains, navy beans
|
B12
(Cobalamin)
|
·
Metabolism
·
Brain + nervous
system health
·
Helps make red
blood cells
|
·
Makes energy
from food.
·
Keeps the
wrapping around nerves healthy so they can send messages.
·
Blood cells
carry oxygen so we can live!
|
·
Meat, fish,
shellfish, dairy
·
IMPORTANT! Vitamin B12 is made by bacteria, and
is only naturally present in animal products (fun fact: many of these animals
get it from eating their poop, because that’s where the bacteria are making
it).
·
Thus,
there are no reliable, naturally-occurring
sources of B12. So if you are a
vegan, be sure to supplement your diet by popping a pill or by choosing an
alt-milk that has B12 added to it.
*I personally believe in and practice getting
all of my nutrients directly from natural food sources (or as little
fortification as possible), which is why I’m not 100% vegan J
|
Vitamin C
|
·
Antioxidant
·
Helps build
collagen proteins
·
Helps make
serotonin and norepinephrine
|
·
Prevents cell
damage caused by oxidation
·
Collagen is
what keeps skin soft and stretchy – healthy skin, less wrinkles!
·
The mood/sleep hormones
again! Keep us healthy and happy!
|
·
Liver and organ
meats
·
Oranges,
bananas, strawberries, kiwis, peppers, cantaloupe.
|
B5 (Pantothenic
Acid)
|
·
Metabolism
|
·
Provides energy
from food
·
Important for
skin and nerve health
|
·
Liver, beef,
chicken, fish, egg yolks
·
Beans,
peas, peanuts, avocados
|
Biotin
|
·
Metabolism
·
Builds fatty
acids
·
Build amino
acids
|
·
Provides energy
from food
·
Fatty acids are
stored or used for cell health.
·
Amino acids are
used to keep hair and fingernails healthy.
|
·
Made by bacteria
and used by the body, but we still need some from food!
·
Egg yolk, liver
·
Soy
beans, peanuts, beans, lentils, nuts
|
Fat
Soluble Vitamins
·
Absorbed with fat!
·
Stored in
the body, so they can be toxic.
·
Just get them from food. Don’t mega-dose yourself.
|
Role in
the Body
|
Why is
that Important?
|
Where to
find it in food!
|
Vitamin A
(Retinol)
|
·
Makes pigments and light receptors in eyes.
·
Getting a little complicated here: interacts
with DNA to change cells.
·
Builds bones
·
Immune health
|
·
Light receptors
are what allow us to see! Healthy receptors = healthy eyes
·
So in all
honesty, really not super-important to know, but I was proud of the analogy
here, and it’s pretty interesting. Think
of it like a guidance counselor
for cells: it helps little high school skin cells go to college to become
epidermis cells (your “skin”), rather than the slimy under-ground-dwelling
mucus-making cells. And vice-versa.
·
Works with bone
cells (no one really knows how it works, actually)
|
·
Liver, dairy
·
Carrots, sweet
potatoes, butternut squash, pretty much all of my favorite vegetables ever,
greens, broccoli, yup.
|
Vitamin D
|
·
Bone metabolism
·
Maintains
healthy levels of calcium in the blood
·
Cellular health
|
·
Super simple
here: helps build bones and keeps them healthy by working with calcium –
which we’ll learn more about next week cause this is turning out to be quite
the info dump J
·
Works much like
Vitamin A on cells, but in the intestines and some blood cells.
|
·
Our bodies make
it – and can make plenty of it with just 15-30 minutes of sunshine every day!
·
Dairy (usually fortified),
salmon, egg yolks
·
Alt-milks
(usually fortified), mushrooms
but really, how great are mushrooms? Bet
you didn’t know they were so great, huh?
|
Vitamin E
|
·
Antioxidant
|
·
Helps prevent
free radicals, those nasty little things that can cause damage to cells.
·
|
·
Salmon, egg
yolks, codfish
·
Olive
oil, other vegetable oils, nuts and seeds
|
Vitamin K
|
·
Blood clotting
·
Needed for
proteins involved with bone health
|
·
Activates
proteins which bind to calcium and other things floating around in the blood
to help it clot if you happen to cut the
tip of your finger off while making salsa (this has happened to me more than
once).
·
Again, vitamin
K activates proteins which help rebuild bone.
|
·
Vitamin K is
produced in plentiful amounts in our guts! Thanks, bacteria!
·
But
you can also get it from foods… Anything green and leafy (kale, spinach,
lettuce, cilantro, parsley, beet greens, collard greens, etc.), broccoli,
cauliflower.
·
IMPORTANT!!! People who are taking blood thinners need
to watch their vitamin K intake. Your doctor should have told you this, and
you should be going to regular blood draws and checkups to monitor this J
|
Well, this turned out to be quite a lot more information
than I intended! As I stated before, micronutrients
are complex – there’s a lot that goes into understanding exactly what they do,
and I’ve tried my best to simplify things and tell you what’s really important
to know. Though it may not be super important, I like to include why these things are “good for your eyes”,
or “help build strong bones” so that you’re informed. Anyone can tell you
anything (usually to sell your something) – like the people who say B Vitamins energize
you. But as you learned today, that ain’t
true! It’s the calories from the food (macronutrients)
we eat that provide us with energy, the B vitamins simply help our bodies use
the energy that’s already there.
There’s a lot more
that goes into it than what I’ve described, and if you’re up to it, I totally
encourage you to investigate and learn more about how vitamins work in our
bodies! It’s truly amazing to literally see how we were created with such tiny,
tiny details that work together so perfectly. In the next post, get excited for
minerals, the other micronutrients!
I promise, we’re almost through with the science-y stuff
(hah, never!) and on to what you all really want to know… how to cook healthy
food!