É importante mastigar devagar e não engolir a comida à pressa.

É importante is a very common Portuguese pattern meaning It is important.

Portuguese often uses é + adjective + infinitive to make general statements:

• É importante estudar. = It is important to study.
• É bom descansar. = It is good to rest.
• É difícil aprender isto. = It is difficult to learn this.

You do not need a word like isso here, because Portuguese can use this impersonal structure directly.

Because after É importante, Portuguese commonly uses the infinitive to talk about actions in a general way.

So:

• mastigar = to chew
• engolir = to swallow

The sentence is not saying you chew or you swallow directly. It is expressing a general idea: chewing slowly and not swallowing food in a rush is important.

This structure is very natural in Portuguese.

Mastigar means to chew, and devagar means slowly.

So mastigar devagar = to chew slowly.

In Portuguese, adverbs like devagar usually come after the verb:

• falar devagar = to speak slowly
• andar devagar = to walk slowly
• mastigar devagar = to chew slowly

In Portuguese, não usually comes before the verb it negates.

So:

• não engolir = not to swallow
• não comer = not to eat
• não falar = not to speak

Putting não after the verb is generally not correct in standard Portuguese.

They describe two different stages of eating:

• mastigar = to chew
• engolir = to swallow

So the sentence contrasts them nicely:

• first, chew slowly
• and do not swallow the food in a rush

This is why both verbs appear together.

Both can exist in Portuguese, but engolir a comida sounds very natural because it refers to the food being eaten.

Portuguese often uses the definite article more than English does. So where English might say simply swallow food, Portuguese may often prefer engolir a comida.

This does not necessarily mean one specific dish only. It can still sound general in context.

À pressa means in a hurry, hurriedly, or in a rush.

It is a fixed expression in Portuguese. In this sentence:

• não engolir a comida à pressa = not to swallow the food in a rush

You will also hear:

• fiz isso à pressa = I did that in a hurry
• comer à pressa = to eat in a rush
• sair à pressa = to leave in a hurry

Because à is a contraction of:

• a (preposition)
• • a (feminine singular article)

So:

• a + a = à

In à pressa, this contraction has become part of a set expression.

The accent is important because:

• a = a / to / at (depending on context)
• à = to the / at the / in this contraction

Even if learners first understand à pressa as one chunk meaning in a hurry, it is useful to notice that the accent matters.

They are similar, but not exactly the same.

• depressa usually means quickly
• à pressa usually means in a hurry, often with the idea of being rushed

Examples:

• Ele fala depressa. = He speaks quickly.
• Ele saiu à pressa. = He left in a hurry.

In this sentence, à pressa fits well because it suggests swallowing food in a rushed way, not just doing it fast.

E means and. It joins the two actions:

• mastigar devagar
• não engolir a comida à pressa

So the sentence gives two linked ideas:

1. chew slowly
2. and do not swallow the food in a rush

This is very straightforward coordination.

Yes, that would also be understandable and natural.

The version with a comida is slightly fuller and perhaps a bit more concrete. The version without the article sounds a bit more general.

Both are possible:

• engolir a comida à pressa
• engolir comida à pressa

The original sentence is perfectly natural.

Yes. Devagar is very common and natural in European Portuguese.

Examples:

• Fala devagar. = Speak slowly.
• Anda devagar. = Walk slowly.
• Come devagar. = Eat slowly.

It is one of the most useful adverbs for beginners.

The original sentence is general and impersonal: It is important to...

If you wanted to address someone more directly, you could say:

• É importante mastigares devagar e não engolires a comida à pressa.
  This uses the personal infinitive and can refer more clearly to you in an informal singular context.

Or more simply in everyday speech:

• Deves mastigar devagar e não engolir a comida à pressa. = You should chew slowly and not swallow the food in a rush.

But the original version is the most neutral and general.

A helpful rough guide is:

• engolir ≈ en-go-LEER

A few notes for European Portuguese:

• the final -ir is pronounced with a clear eer sound
• unstressed vowels are often reduced more than in Brazilian Portuguese
• the l is a clear l, not like an English w

You do not need a perfect accent immediately, but it helps to notice that European Portuguese often reduces unstressed vowels quite strongly.

It is neutral.

It would sound natural in many contexts:

• health advice
• parenting advice
• school materials
• medical or nutritional guidance
• everyday conversation

It is not especially formal, but it is also not slangy or casual. It is standard, clear Portuguese.