22/03/2026
Are sardines good for you?
Sardines, when eaten in moderation, are highly nutritious and packed with a wide range of essential nutrients that can boost your overall health.
Sardines contain the following key nutrients:
Protein - helps build and repair muscles, supports tissue healing, creates new cells, and contributes to strong bones, healthy digestion, hormone balance, and a robust immune system.
Calcium (from the bones) - essential for strong bones and teeth, and also plays a key role in heart health, muscle contractions, cell signalling, and hormone production.
Vitamin D - helps your body absorb calcium to keep bones strong, while also supporting immune health, muscle function, cell growth, and controlling inflammation.
Vitamin B12 - keeps your nervous system and blood cells healthy.
Selenium - acts as an antioxidant to protect your cells from damage and supports your immune system.
Omega-3 fatty acids - help reduce inflammation and support the health of your heart, brain, and eyes, while also boosting your immune system.
If you enjoy sardines, are metabolically healthy, and are looking for a short, structured reset, you may try 3 day sardine fast.
People who are pregnant, have a history of eating disorders, gout, kidney disease, or require regular carbohydrate intake should avoid it.
We take a closer look at where the sardine fast came from, the thinking behind it, and whether this unusual health trend really does what it says on the tin.