Diet habits from Thailand. Warm/hot water and/or tea or coffee in the morning. 
Warm liquids cleanse they body. No food for breakfast.

Green tea, fresh ginger root tea with honey and lemon. 
Slice some fresh ginger root you can buy at stores like Price Chopper
and boil for 30 minutes or use hot water from microwave and steep.  
Ginger is good for many things. She said you can look it up (on
the internet).  I said, I know. It is wonderful.

Lady who works at a Thai restaurant at 103rd and State Line
in Kansas City, Missouri,  told me this today.

She doesn't eat food in the morning. Some of her relatives will eat
fruit such as citrus (lemon/oranges,etc) but is most often pineapple and mango
in the morning. They will drink some juice, usually pineapple. 

She grew up with never having a glass of water served with a meal
The meals usually include a soup of some sort which supplies some liquid water.

Wait 30 minutes after eating to drink water. Drink lots of water.
It is very good for you.

They don't eat the typical flour and sugar laden desserts. They
eat fresh fruit. 

Sip small amounts of water or tea with a meal.  She doesn't drink soda.

1 pm eat first meal of day.

6 pm eat dinner.

I said I have been drinking water, tea and or coffee in the morning
for many years and don't eat breakfast right after I wake up.
Never liked it. My body is trying to awaken. The last thing on my mind
is food when I wake up. I wait until afternoon
to eat my first meal.

Balanced diet of protein, complex carbohydrates and simple carb natural foods
and herbs and spices.

Does not eat doughnuts/donuts or any of the typical pastry items that people
of western culture eat. Thai Spice restaurant quit ordering desserts
too complicated due to this covid thing. Thai don't eat these desserts, anyway.
She said sometimes they order Coke coca cola and don't get it. they
get "Pibb" instead and sometimes they get pib when ordering the coca cola
due the problems with ordering things now.  All of the things they order
of food are from Thailand and it is disrupted.

Thailand and Asian people are thin because of their diet and
lifestyle. Overweight ones have taken the American/Western diet.

Typical western diet is too much food. People eat 2 or 3 plates of food
or more. They drink lots of soda, tea or water (several glasses she
has observed at times) with a meal. They don't think about their
bodies, they don't care. As long as it tastes good they eat and drink it.
This is not what Asian and Thai people do. 

She said all of this soda and foods like donuts and desserts and you end up with
diabetes and high blood pressure and heart disease. She said she is healthy,
rarely gets sick, knock on wood, and her family is healthy as well.

I said, "Yes. People end up with metabolic syndrome, fatty liver, diabetes
and all of these health problems and they don't know why. If, by chance,
they go to a good doctor, the doctor tells them to follow a good diet
but people are creatures of habit and keep doing what they do. Changing
a habit into a better one is easier if you do one thing at a time such as
replacing the soda with water like I did many years ago. 

I weigh 125 lbs  and am about 5 foot 5 inches".

The Thai lady was much shorter than me, maybe 5 feet or so and
is in nice shape. Her skin and hair are clear and shiny and bright.