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(Professor Emeritus Lee Gyeho, CNU) Hello, this is the second lecture about
the two sides of nutrients: poison or cure
So, what does this really mean?
When we eat, how we eat can. make food
either a poison or a cure; remember this
In Korea, views on issues are very diverse
For example,
(cause) you go to the restroom to mop
Clearly, water is overflowing there
So, you'd clean up the water quickly
Why? Because it could spill outside
But what's causing the spill?
The faucet is broken
You need to fix the broken faucet (cause)
not just treat the symptoms
But in Korea, there's so much focus
on treatments/cures that treat sympotoms
It's one of the countries with most cures
and special treatments in the world
You've probably heart a lot of them too
For example,
lately, I've been getting gray hair and
white hairs. So, try eating black beans
and it keeps going on like that
But as I mentioned before
every symptom has a cause
We should treat both the cause and symptom
Let's take a look at why even the same food
can be either a poison or a cure
You all know who she is, right?
She's a figure skater, Yuna Kim
If we analyze the solid components of
the body, like her or your own strong
muscles and bones, the composition is
the same as that of soil and chemical
And the liquid in us (seawater and water)
So, what is a human? A house made of earth
And when a person dies, where do they go?
Back to the earth, back to the original
So, humans are created to receive
nutrients from the earth to survive
But imagine how sad it'd be if we woke up
ate a bowl of earth, had clay for lunch,
and earth porridge for dinner.
So, God, wanting to help humans get
the nutrients from the earth, created
plants on the third day to deliver them
"Then God said, 'Let the land produce vegetation: seed-bearing plants and trees on the land that bear fruit with seed in it,
according to their various kinds.' And it was so." [Gen. 1:11]
The role of plants is very simple
They send their roots into the ground and
extract the nutrients needed by humans
then deliver them through
the leaves, fruit, or stems
But just in case humans don't eat them
they add sweetness, fragrance, and color
So, the food that God originally provided
when we eat, something interesting happens
When we eat food
energy is generated
That's why we can talk, walk, and live
But the leftover from the food we eat
creates aging matters, causing us to die
What does this mean? Food has both
the life-giving function (medicine) and
the death-bringing function (poison)
This balance needs to be just right
It has to be balanced properly
If it's off, the food can become either
a medicine or a poison
It means it can swing both ways
So, when the two functions of food
are balanced properly, what happens?
The immune system
God originally gave us is perfect
Thus, we can overcome all kinds of disease
COVID-19 isn't even a disease
God has given us a weapon,
our immune system, to fight all diseases
The problem is, in our lives,
our immunity goes up and down
When it drops
that's when all human diseases begin
All human diseases start from there
Do you know what this is? It's an apple
There's a British proverb, "An apple a day
keeps the doctor away." It means
apples are a fruit full of nutrients
But the apple your grandfather ate
in the 1910s, the nutrients in that
single apple, are different from today
This is a credential data from the USDA
Just 80-90 years have passed,
but the nutrient levels have all decreased
For iron, the nutrient in apples has
by 96% between 70-80 years ago
So, to get the same amount of iron
that your grandfather got from one apple
100 years ago, you would need to eat
40 apples today at least
This means today's apples aren't authentic
They're just pretending to be apples
For those of you watching, especially
older viewers might understand this better
Do you know the Jonathan apple?
What kind of apple is it?
It's red, small, and sweet and sour
It makes my mouth water already
The sweet and sour flavor comes from
the rich presence of malic acid
That small, sweet and sour Jonathan apple,
with the same nutritional value as 4-5
today's Fuji apples, has been replaced
because people prefer sweetness over
sourness where now only sweet ones remain
They've all changed like that
And the soil where apple trees take root
has changed unlike 100 years ago
These changes also affect the food we eat
Not only it decrease iron levels,
but also decreases the vitamin levels
All vitamins except C have decreased
Is it just apples? No, it's not
Fruits, vegetables, leafy greens, grains,
and meats all have reduced nutrient levels
Only phosphorus and potassium increased
Why?
It's because of the fertilizer components
Fertilizer is needed to grow well include
phosphorus, potassium, and nitrogen
That's why the food we eat keeps changing
There's this issue with changing food
but the bigger problem is this:
When you eat food, like sweet potatoes,
potatoes, rice, noodles, or bread,
what do we call them? Carbohydrates
For carbohydrates to digest in the body,
the enzyme amylase must be produced
But strangely, God designed the enzyme
amylase, which breaks down carbohydrates,
doesn't come out at all in the stomach
Not a single drop comes from the stomach
Where does it come out, then?
It's only present in saliva
So, when we eat carbs, like rice,
the carb-digesting enzyme amylase is
needed for digestion and absorption
But amylase is not produced in the stomach
not even a single drop
It's only found in saliva
Do you know how many teeth we have?
An average adult has 32 teeth
And how many canines and incisors?
Together, that makes 12 teeth
If you subtract 12 from the total of 32
you get 20. These are molars
So, the 20 molars means to chew
Why did God place 20 molars in our mouths?
To chew; Don't chew on
other people's business, focus on your own
But we're busy, we need to make money
we need to study at the academy to get
better result the SAT/ACT for college
So, we start to pass mealtime and develop
the habit of eating fast, which became
part of our daily routine now
So, let's see what happens if we eat fast
You'd swallow the food without any saliva
which goes straight down into the stomach
The stomach then spends 2 hours grinding
into a paste and to the small intestine
But when it's sent to the small intestine
if digestive enzymes were present
it would already be broken down
into glucose and absorbed
Instead, the intestine became a trash bin
Its temperature is 39 Celcius
These days, during the hot summer,
it's usually around 39-40 Celsius, very hot
In 2-3 hours, it'll probably spoil
and start to smell
What did we say about people like this?
Their gas and stool smell strong
because the food they ate
should digest and absorb
but what's it doing instead? It's rotting
Therefore, we need to chew food
Many people say we must follow God's word
when living a faith life
In terms of spiritual obedience
we pray, study scripture, and engage in
various spiritual practices with training
When it comes to
obeying God's word physically
most people don't know what that means
And what is eating food?
Chewing thoroughly as we eat?
It's a way to physically follow God's word
So this too is part of a holy faith life
Just like we worship and pray, putting
putting effort into chewing
It's time for a change in our faith
So far, we've focused on the spirit life
God wants us to be strong and balanced
God sees with deep compassion a person
God views it with great compassion and sorrow
So now, chewing is part of our faith life
Why? Because it's obeying God's word
But chewing is not easy at all
So, let me share a few tips with you
First, brown rice is good for health and
you need to chew it at least 50 times
I can already hear a sigh
This is actually stress, right? Why?
Because I've strongly said that
chewing 50 times is part of your faith life
So, I started my day by taking a spoonful
of brown rice and trying to chew 50 times
After chewing about 5 times, it started to
go down my throat; I tried to block it
Then, 50 times felt really long
I started counting just in case I forget
Counted 41, 42, 43, and someone asks me
I forgot whether it was 41 or 31
I would get stressed every time I ate
So, my wise recommendation
making brown rice or white rice
Wash the whole sesame seeds and add
a proper amount of whole sesame seeds
Then, when you serve the rice, you can eat
As you chew, you'll hear the pleasant
sound of sesame seeds popping in mouth
You'll no longer hear it after 50 times
So, if tou chew the rice until you don't hear
The more you chew
the more it starts to taste richer
and you can enjoy the rice more
But this still might not work, why?
For 30 to 60 years, my body has been trained to swallow food
would react that way; for those
who can't do this, I recommend
eating a plate of your favorite salad
Even for someone who eats fast
when it comes to that soft lettuce
can they swallow it without chewing? No
How about the carrots? No
So, you have to chew to eat the salad
You absolutely have to chew
While chewing, a lot of saliva is produced
then, when you eat rice with sesame seeds
The so-called digestive enzymes
by obeying God's word
the easiest way to turn the carbohydrates we enjoy eating
into medicine is something that most people in our country are
currently neglecting
Why? Because they need to make money
If there's only 3 or 5 minutes to eat
they mix it with water and gulp it down
"When I go to the cafeteria with others at work"
with others, if they chew 50 times
others finish eating and leave
which doesn't fit with social life
In this case, if you don't have time or
need to match your eating time with others
what should you do?
You need to reduce the amount of food
If you reduce the amount of food and chew
slowly, it becomes more beneficial
Slowly eating less is much better for
your health and helps with weight loss
Because God, in his wisdom, made
the structure of the stomach such that
food enters and is kneaded for 2 hours
to create a paste right?
So, there's a valve which kneads the food
But the food will spill out if the stomach
is too full and it gets kneaded
That's why food should only fill up
2/3 of the stomach, and a sensor is placed
so when the food fills up and reaches 2/3
nerve cells send a signal that it's full
Then, leptin is released, which suppresses
appetite and makes you lose your craving
The stomach shouldn't be full because
it needs some space for kneading
But the nerve sensor activates
Generally, people who gain weight are
those who eat fast, before the 5-10 minute
before the sensor has a chance to activate
after 5-10 minutes, when the stomach is
2/3 full, leptin is released, signaling
it's full, which leads to weight loss
You understand what I'm saying?
So, for those who are worried about
overeating, if you eat slowly, the portion
decreases while getting more nutrition
So, whether it becomes medicine or poison
depends on the time you spend eating
It's for those who find it hard too
But the funny thing is that
in the stomach, digestive enzymes are
not relased when chewing, so God gave us
32 teeth, but He must have known that
we wouldn't chew, anticipating that
we'd use the excuse of being busy
But if we don't chew and just swallow
the food goes down and ends up as waste
So, God finally asks the pancras for help
Being in a hurry and not chewing will
end up with problems, so the pancreas
So pancreas releases
50% of the amylase digestive enzyme
chewing; that's how we're able to live now
By God's grace
But people nowadays overwork the pancreas
It's like an emergency organ where
the teeth chew and trigger the
digestive enzymes, it doesn't have to work
But we end up pushing all the work onto it
All the digestive enzymes are eventually
released emergency-style from the pancreas
It also releases insulin, which is
the hormone that regulates blood sugar
level when we eat something sweet
insulin is like a taxi to transport sugar
The pancreas also needs rest and sleep
but sugar comes in at all hours
So, the characteristic of people is that
they make the pancreas work very hard
So, if the food is properly digested
we eat according to God's design
the food becomes medicine
But if not, it all turns into poison
Personally, I know that
many people are very interested
even in what kind of food I eat
I try to eat in simple moderation
I strive to have a balanced diet mostly
A balanced diet means consuming primary
primary agricultural and marine products produced through natural farming
natural farming; the commercially growns
have less nutritional value
I try to choose quality proteins from
the natural agricultural products
and I mainly recommend plant-based sources
Animal protein isn't problematic but next time I'll explain
the difference between plant-based and animal-based protein
Whenever possible, I prefer plant-based
For quality protein, I prefer white meat
A good example would be fish, especially
lean varieties with less fat, and for fats
focus on healthy sources like omega-3s
perilla seeds are also excellent
For good carbs, I recommend whole foods
like whole wheat flour or brown rice
After studying these three main nutrients
I suggest vegetables and fruits as
sources of minerals, vitamin, and fiber
Cheonggukjang and kimchi for fermented
Dried seaweeds or kelps for seaweeds
Wild greens or local produce for seasonals
But, be cautious with vegetable and fruits
People who have abdominal obesity and a protruding lower belly
often do a lot of exercises to try to flatten it
they eat a lot of sweet fruits at night
If you eat sweet fruits at night
100% will go straight to your lower belly
So, it's best to eat fruits during the day
either in the morning
or when you're active
Some ask which is better: meat/plant-based
and there's a lot of debate around whether
eating meat is bad, or if plant-based
like soy are good
When we break down protein
it forms amino acids in our body
When carbs break down, they form glucose
which becomes our energy source
Protein breaks down, forming amino acids
which becomes the building blocks for our
body's tissue cells, amino acids
There's essential and non-essential types
There are 8 essential amino acids
The difference between essential and
non-essential amino acids is that
essentials can't be produced by our body
These 8 essential amino acids must be
obtained through food and must be supplied
to our body through food to be utilized
Lacking just one of these amino acids can
cause problems to our body
Interestingly, animal-based protein (meat)
contains both essential and non-essential
That's why it's called complete proteins
But plant-based proteins like beans
are considered incomplete proteins
meaning they lack
one or two essential amino acids
For example, beans are rich in lysine
but lack methionine
missing one essential amino acid
Rice is low in lysine, rich in methionine
Since both bean and rice are missing some
just eating bean doesn't compare to
animal-based protein, argued by some peope
Then, you can mix beans and rice that
provides all the essential amino acids
So, if you're concerned about complete or
incomplete proteins, eat rice with beans
Beans and rice form a complete protein
Moving forward, it's not necessary to eat
animal protein just because it's
you can easily create
a complete protein by mixing bean protein
with rice or grains to fill in any missing
amino acids and supply essential acids
Do you get it?
Make sure you eat rice with beans
If you mix some grains with the bean rice
So, now you understand that the food we eat
can turn into either medicine or poison
can either be medicine or poison, right?
So I'll end my lecture here and answer
some questions you've asked so far
I'm a man in my 40s. I sweat a lot usually
but especially in the hot summer, I feel
more quickly fatigued. I don't feel like
any energy is restored even after I eat
summer tonic foods. Any recommendations?
When I read this kind of post, I think
there are certain aspects of traditional
Korean food that we must understand
The characteristic of Korean summer foods
is that they're high in fat and protein
During summer, important people (fathers
grandfathers) must eat the eel tail
because the tail contains the most fat
That was food eaten in the past when
we couldn't afford much, especially when
we had dry skin and rashes to cure them
Korea is now experiencing excess nutrition
This is why this person feels fatigued
where it could be due to dehydration
from sweating a lot
rather than a problem with food
It's important to continuously supply
adequate water, and when sweating
salt is lost
so it's essential to
consume salt as well
Salt can be an issue when it's too bland
Always keep an appropriate amount of salt
So, I think this person should focus more on hydration
rather than worrying too much about foods for replenishing energy
eating what he enjoys and staying hydrated
Second question
My grandmother (over 80) struggles with
struggles with digestion and often eats simple meals
Ads claim these products ar
balanced, but can she eat regularly?
First, there's no issue from a nutritional
standpoint, but it's completely normal for
someone over 80 to struggle with digestion
As we age, the amount of food we consume
should decrease
because our body produced fewer
digestive fluids, so the amount of food
we consume should decrease accordingly
But if she is over eighty and still eating a lot of food
yet complains of indigestion, what does that mean
eating more food than her digestive fluids
can handle because the elderly often
often have the belief that eating a lot and feeling full
is necessary for health because they experienced hunger in the past
However, as they age, reducing the amount of food
digestion and prevent digestive issues
Check the quantity of food being consumed
Second, commercial convenience meals often
have too much nutrition
I don't recommend elderly people consume
these concentrated products in long terms
If they really need to eat such, try
a small amount for about a week and reduce
the amount gradually; consuming too much
of such can cause side effects
leading to digestive issues
I suggest testing the small amounts first
and reducing the food portions
while also trying to chew more
to improve digestion
At schools and companies, meals are planned by nutritionists
the menu planned by a nutrionist, but
it's not easy to prepare meals at home
while considering nutrients. What do I do?
Nutritionists use computer programs to
roughly calculate the nutritional value
and calories of meals based on the food
But it's hard to do so in households
If they tried, everyone in the family
would complain about the taste
Nutritional value and calories are ignored
In households, it's hard to create
a balanced meal plan because sometimes
they lack the knowledge
The easiest and simplest method is to
increase the variety of side dishes
as much as possible
while keeping the portions small
Instead of making one or two dishes
in large portions, make more small dishes
and the likelihood of achieving a more
balanced nutritional intake increases
Due to the nutritional imbalance in the
the nutritional balance of the current
primary agricultural products
has been disrupted
if a you feels the meals are nutritionally lacking
I sometimes recommend
such as 3-6 months
because each household may not be able to
consume a variety of other food
In such cases, I recommend taking
a multivitamin for 3-6 months at a time
I'll end my lecture on nutrients here
Thank you