
Revelando os benefícios ocultos do iogurte para a saúde
Revisado por Dr Colin Tidy, MRCGPLast updated 9 Abr 2026
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Existem muitos tipos e marcas de iogurte disponíveis em supermercados em todo o mundo. De baixo teor de gordura a integral, com sabor ou com frutas, cada um promove uma variedade de características únicas e benefícios para a saúde. Este artigo explora os aspectos saudáveis do iogurte e como identificar as opções menos saudáveis.
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Is yoghurt good for you?
Yoghurt - in particular Greek yoghurt - is widely recognised as a health food due to its beneficial nutrients and probióticos. It is a versatile ingredient that can be added to a variety of wholesome meals. Eaten by millions across the globe, yoghurt is a fermented food made by mixing milk with live bacteria (probiotics).
This good bacteria transforms the milk's natural sugar (lactose) into lactic acid which thickens the milk, giving yoghurt its distinctive texture and tangy flavour. Because of these popular wellness benefits, consumer demand for yoghurt is higher than ever.
Health benefits of natural yoghurt
Voltar ao conteúdoToday's yoghurt aisle offers a variety of flavours and ingredients. But what are the health benefits of natural yoghurt?
Reema Pillai is a private dietitian based in London at Dietitian Fit & Co. She explains that yoghurt provides vital nutrients such as protein, vitamin B12, calcium and potassium. Because it is a fermented food, it's also a good source of probiotics. These support the diversity and population of our healthy gut bacteria, which improve digestive health and immunity.
Probióticos
Packed with probiotics, natural yoghurt contains good bacteria that improve digestion and boost your immune system.
Cálcio
Yoghurt is a good source of cálcio - a mineral the body needs to keep our bones strong. Calcium is also essential for muscle movement, blood circulation, hormone release, and for keeping your nervous system working.
Vitaminas
Dairy yoghurt is full of vitamin B12 (riboflavin). This type of vitamin helps convert food to energy, boosts our metabolism, and keeps cells functioning. Many yoghurts are also enriched with vitamina D, which is crucial for bone health.
Potássio
Yoghurt is rich in potássio - a mineral that balances fluids, supports nerve function, and regulates blood pressure.
Proteína
Protein is made up of amino acids that help with muscle and bone repair. Eating yoghurt can boost your protein intake - especially Greek yoghurt which is even higher in protein.
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Are all yoghurts healthy?
Voltar ao conteúdoStudies show that natural forms of yoghurt can boost gut health, strengthen your immune system, and even help in managing conditions such as osteoporosis, heart disease, and diabetes. However, not all yoghurts are healthy - despite what it says on the pot.
Pillai says: "Some yoghurts are marketed as being low fat or fat-free, and although they are lower in calories, they often contain added sugars or sweeteners to replace the flavour of removing the fat.
"Any flavoured yoghurt is likely to be sweetened using sugar, or a form of sweetener, so it is important to check these flavoured yoghurts before buying."
Flavoured and fruit yoghurts
Some products, such as flavoured or shop bought fruit yoghurts often contain added sugar. In stark contrast to the health benefits listed above, eating too much sugar can harm your health and raise your chance of obesity, diabetes, and heart disease. A combination of fruit and yoghurt might seem a healthy choice, but the added sugars and flavoured syrups found in the fruit compartment of a yoghurt pot will significantly increase its sugar content.
Artificial sweeteners
While sugar-free options may sound good, research suggests that yoghurt containing artificial sweeteners might disrupt your gut function and contribute to weight gain.
Low/fat-free yoghurts
Low-fat or fat-free yoghurts often come with added sugar to improve taste and compensate for the lack of fat. It’s worth pointing out that full-fat yoghurt can still be a part of a healthy diet when consumed in moderation.
Which yoghurts are good for you?
Voltar ao conteúdoWhen it comes to choosing yoghurt, it's important to go for those containing good bacteria. Pillai suggests checking that the label contains phrases such as 'live' and 'active' cultures, or includes the names of certain bacteria in the ingredient list.
The most popular are bacteria known as:
Lactobacillus.
Streptococcus.
Bifidobacterium.
She adds: "These bacteria are known to provide healthful effects, and can be found in many yoghurts such as Greek and Icelandic yoghurts, as well as kefir."
What to look out for on the label:
Plain yoghurt - such as Greek yoghurt - is less likely to contain added sugar and is particularly rich in protein. Scan the ingredients list first to check there's no added sugar in the product before buying.
Prebióticos are a type of fibre that feed the good bacteria in your gut. While some yoghurts have prebiotics added already, you can also pair plain yoghurt with prebiotic-rich foods such as chopped banana, honey or chicory root to further boost your gut health.
Look for 'live and active cultures' on the yoghurt label. This means it has an excellent source of good bacteria to help keep your gut happy.
Choose yoghurt with a recent production date and eat it before the best before date. Probiotic bacteria are most active when fresh and are less effective after being in prolonged storage conditions.
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Is yoghurt safe for everyone?
Voltar ao conteúdo"Yoghurt is safe for the majority of people to consume," says Pillai. "But there are a small number of people with intolerância à lactose or even an allergy to cow's milk."
If you're lactose intolerant - studies show that the friendly bacteria found in yoghurt actually help break down some of the lactose, making it easier to digest than other dairy foods. However, it's still a good idea to start with a small amount of yoghurt, see how you get on and stop if you feel uncomfortable.
If you have a cow's milk allergy - you should not eat yoghurt as it’s primarily a dairy product. People with milk allergies may have a severe reaction to eating even a small amount of yoghurt.
Plant-based yoghurts
Voltar ao conteúdoPillai suggests that someone with a cow's milk protein allergy can opt for a plant-based yoghurt alternative, such as soy yoghurt.
"Many of these plant-based alternatives have had bacterial cultures added to them," she says. "So they can still be beneficial for our overall health. However, it is important to look for these plant-based yoghurt alternatives that have not been heat treated, as this will otherwise kill the bacteria present in these foods."
Choosing a healthy yoghurt
Voltar ao conteúdoNatural yoghurt is an excellent source of good bacteria, protein, calcium, vitamins, and minerals. It can support gut health and contribute towards the healthy function of your body. However, as Pillai warns, not all yoghurts are created equal.
Remember to:
Read the labels carefully.
Choose plain yoghurt with no added sugars or flavours.
Check for a recent production date.
This way, you can enjoy the benefits of yoghurt without any negative effects on your health.
Make your own yoghurt
Voltar ao conteúdoIf you're unsure about which supermarket yoghurt to choose, why not make your own?
Easy yoghurt recipe
Pillai recommends that a quick and easy way to add yoghurt into your diet, is to make yoghurt bowls. These could be as a breakfast, a snack, or even a dessert:
Put 2-3 tablespoons of live yoghurt in a bowl.
Top with some fruit such as sliced banana and a handful of berries.
Add in 30 grams of mixed unsalted nuts or seeds such as pumpkin seeds.
Enjoy.
And here's a simple slow cooker recipe for making healthy, natural yoghurt that's free of sugars and artificial ingredients.
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About the author

Victoria Raw
Redatora de Reportagens
BA (Hons), Literatura Inglesa
Victoria is a content writer with Patient whose special interests focus on mental wellbeing, societal trends and the impact of technology on our health.
About the reviewerView full bio

Dr Colin Tidy, MRCGP
Médico Generalista, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy é um médico do NHS, baseado em Oxfordshire.
Histórico do artigo
As informações nesta página são revisadas por pares por clínicos qualificados.
Próxima revisão agendada: 8 de abr de 2029
9 Abr 2026 | Última versão
12 de maio de 2024 | Publicado originalmente
Escrito por:
Victoria RawRevisado por
Dr Colin Tidy, MRCGP

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