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Aliments fermentés

Yogurt

A fermented milk product rich in protein and probiotics, created through bacterial cultures.

Definition

A fermented dairy product made by culturing milk with specific bacterial strains, primarily Lactobacillus bulgaricus and Streptococcus thermophilus. The fermentation converts lactose into lactic acid, creating a thick, tangy product.

How it works

Yogurt production involves heating milk and then adding specific starter cultures that ferment the milk at controlled temperatures for several hours. This process converts lactose (milk sugar) into lactic acid, lowering the pH and creating yogurt's characteristic tangy flavor and thick texture. The fermentation also makes milk proteins and minerals more easily absorbed by the body. Greek yogurt undergoes additional straining to remove whey, creating a higher-protein product. Regular consumption of yogurt with live cultures supports beneficial gut bacteria, though not all commercial yogurts contain active cultures.

Role

Provides protein, calcium, and live probiotics that support bone health, digestion, and immune function.

Examples

  • Greek yogurt
  • Regular yogurt
  • Skyr
  • Plant-based yogurt
  • Flavored yogurt
  • Plain unsweetened yogurt

Recommendations

Choose plain, unsweetened yogurt with live active cultures to maximize health benefits and minimize added sugars. Consume 150-200g daily as part of a balanced diet, and check labels for 'live and active cultures' certification.

Key takeaway

Yogurt is a nutrient-dense fermented food that provides protein, calcium, and beneficial probiotics for improved digestion and bone health.

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