Actually, oatmeal is quite high in calories. You can look at this table (all calculated by 100g). Don't eat too much if you want to lose weight with oatmeal.

Name Calories (Calories) Weight (grams)

Sago instant oatmeal, also known as sago oatmeal 322 100.

Golden raw oatmeal, also known as instant oatmeal 377 100.

Australian oatmeal, also known as instant oatmeal 359 100.

Wheat oatmeal, also known as wheat oatmeal, original and non-boiled 358 100

Zaozaomai original oatmeal can also be called Zaozaomai original oatmeal 358 100.

Oatmeal 367 100

Quaker oatmeal 750g, also called instant oatmeal 392 100.

Royal oatmeal 394 100

Huang Chao oatmeal 355 100

Quaker instant oatmeal 389 100

Zaozaomai Oatmeal 358 100

Sago oatmeal (original flavor) 358 100

Royal instant oatmeal 382 100

Jusco brand instant oatmeal 368 100

Ximai brand walnut high calcium nutritious oatmeal 358 100

The best choice is plain oatmeal 420 100.