Here we are at last; the final cold, hard science edition of
“Simply Real”. You’ve been introduced to ideas about what health and health
food are (that’s less science and more my science-and-experience-based
opinion), macronutrients, and now micronutrients. You have a basic, but
thorough understanding of what foods are nutrient-dense, what nutrients are in
specific foods, and even how these nutrients benefit your body.
Today, we dive into minerals – the “inorganic” cousins of
vitamins. Vitamins are different from minerals because they are made of several
different types of elements, and can be broken down. Minerals are made of only
one element. Think back to your early science classes in elementary and high
school and imagine the periodic table. You probably remember common elements
like helium, hydrogen, and carbon. Minerals in nutrition are elements that the
body uses, and they aren’t broken down like vitamins.
The functions of vitamins and minerals are also different.
Remember that the vitamins usually “helped” things in the body happen: they
help store things, they help build things, they help release and activate
things. Minerals serve to maintain “balances” in the body in addition to being
building blocks. Electrolytes are minerals that you may be familiar with, and
we’re about to find out what they really do.
Mineral
|
What does it do?
|
Why is it important
|
Where to find it in Food!
|
Calcium
|
Part of bone structure
Electrolyte
Role in blood clotting
|
Lends strength and structure to bones
Helps our muscles function
Cool fact: our bones are storage for calcium and release
it when we need to use it free in our blood.
|
Milk and dairy products
Almonds, green leafy vegetables, broccoli, fish with bones
(sardines)
|
Sodium
|
Sodium is an electrolyte
|
Maintains fluid balance in our cells
Muscle movement, including the heart
Maintains pH
|
Table salt
Seafood
Milk
Processed foods (not ideal J
)
|
Potassium
|
Electrolyte
|
Heart function and muscular function
Fluid balance
Maintains pH
|
Bananas
Potatoes
Beans
Dark leafy greens
Mushrooms
|
Magnesium
|
Immune health
Electrolyte
Bone health
Energy and protein production in the body
Blood sugar regulation
|
Important factor in building certain immune cells.
Bone structure
|
Dark leafy greens
Avocados
Nuts and seeds
Fish
Yogurt
Dark chocolate :D
|
Phosphorus
|
Bone and tooth health
Protein building in body
Metabolism of carbs and fats
|
Component of structure
Body maintenance
Energy production
|
Milk + dairy
Meat
Nuts
Phosphorus from animal foods is actually more easily
absorbed than it is from plant foods.
|
Manganese
|
Development of body structures
Calcium absorption
Carb and fat metabolism
Brain and nerve health
|
Helps in the production of connective tissues (skin,
ligaments, fibers that hold everything together)
Part of certain clotting factors (things in the body that
help blood clot)
Builds bones and stores calcium
Energy production and use
|
Whole grains
Nuts
Leafy greens
|
Selenium
|
A trace mineral – needed in smaller amounts.
Builds proteins that prevent oxidation
|
Remember from the vitamins post that oxidation is what
causes aging, inflammation, and general bad things in the body.
Selenium builds antioxidant enzymes which help prevent
this process in the body.
|
Fish
Grass-fed meat
(specifically grass-fed, because the selenium content of meat depends on the
content that is in the food the animal ate!)
Whole grains
Nuts + seeds
Plant foods are the best source of selenium J
|
Copper
|
Blood vessel and nerve health and function
Blood cell production with iron
Iron absorption
|
Copper is another trace mineral, but it is important!
Iron is needed to keep blood cells healthy and oxygenated.
Copper helps with iron absorption.
Helps keep nerves healthy and fresh.
|
Dark Chocolate
Seafood and meat
|
Zinc
|
Cell division (regeneration of our bodies, basically)
Healing wounds
Immune function
Smell and taste function
|
Zinc plays a role in the reaction that allows our cells to
create more cells. This is important for obvious reasons (if your cells aren’t
replicating, you’re dead, so…)
Enhances and speeds wound healing
|
Dark chocolate
Seafood and meat
|
Iron
|
Required for the production of red blood cells
|
Red blood cells carry oxygen in our body and play a role
in fluid balance.
|
Meat
Fish
Nuts
Leafy greens
Animal-based iron sources are absorbed more easily in the
body. However, plant-based sources can be absorbed better when iron-rich
foods are combined with vitamin C. Think spinach salad with strawberries!
|
Iodine
|
Thyroid health
|
The thyroid is an important organ that regulates metabolism
and produces hormones and immune cells.
|
Iodized salt
Oysters + other shellfish
Seafood
|
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