Saudável vs. sadio vs. São
In Portuguese, saudável, sadio, and são can all be translated as healthy, but they carry distinct nuances. Saudável often refers to things that promote health, sadio describes a natural state of being free from disease, and são indicates a state of being whole, unharmed, or sane.
Saudável
A2This is the most common and versatile word for healthy. It typically describes something that is beneficial to or promotes good health, such as a lifestyle, a habit, or food. It can be applied to people, actions, environments, and even abstract concepts like relationships.
Uma dieta equilibrada é fundamental para uma vida saudável.
(A balanced diet is fundamental for a healthy life.)
O ar do campo é mais saudável que o ar da cidade.
(The country air is healthier than the city air.)
Praticar esportes é um hábito muito saudável.
(Playing sports is a very healthy habit.)
Eles mantêm um relacionamento saudável, baseado na confiança.
(They maintain a healthy relationship, based on trust.)
Ele é um homem muito saudável porque se alimenta bem e faz exercício.
(He is a very healthy man because he eats well and exercises.)
Sadio
B2This word describes the inherent condition of being free from illness, disease, or pests. It refers to the natural soundness of a living being (person, animal, or plant) or its parts. It emphasizes a state of being naturally well and not corrupted or sick. It can also be used metaphorically to mean sound or wholesome.
O veterinário examinou o cavalo e confirmou que ele estava perfeitamente sadio.
(The vet examined the horse and confirmed it was perfectly healthy.)
É importante escolher frutas e legumes de aspecto sadio.
(It is important to choose fruits and vegetables with a healthy appearance.)
Apesar da idade, ele tem um corpo forte e sadio.
(Despite his age, he has a strong and healthy body.)
Ela é conhecida por seu juízo sadio e conselhos ponderados.
(She is known for her sound judgment and thoughtful advice.)
O fazendeiro selecionou apenas o gado mais sadio para a feira.
(The farmer selected only the healthiest cattle for the fair.)
São
C1This word (with its feminine form sã) signifies a state of being physically whole, uninjured, and mentally sane. It emphasizes being intact and unharmed, often used after a potential danger, illness, or accident. It is famously used in the expression são e salvo (safe and sound).
Os bombeiros resgataram a família, que saiu sã e salva do incêndio.
(The firefighters rescued the family, who got out of the fire safe and sound.)
Ninguém em sã consciência pularia daquela altura.
(No one in their right mind would jump from that height.)
Após a cirurgia, o médico disse que o tecido ao redor estava são.
(After the surgery, the doctor said the surrounding tissue was healthy.)
Depois de uma longa gripe, finalmente me sinto são novamente.
(After a long flu, I finally feel healthy again.)
Você precisa separar a parte podre da maçã e usar apenas a parte sã.
(You need to separate the rotten part of the apple and use only the sound part.)
Summary
To summarize, use saudável for things that *promote* health (like food, environments, or habits). Use sadio to describe a living thing's *natural, disease-free* state. Use são/sã to confirm that someone or something is *unharmed*, intact, or mentally sane, especially after a risk or illness.