Sardines-Only Diet Is Trending: The Daily Mail says the Three-Day Sardine-Only Diet is trending. Sardines are high in protein and omega-3s, but experts warn the plan may be unhealthy. Doctors say adults should eat two portions of fish a week, with one being oily like sardines. Sardines can contain pollutants such as heavy metals. Mono diets are bad because the body misses out on vitamins and minerals it would otherwise get from healthy, balanced meals. One health expert said, ‘Sardines are a fantastic food and they absolutely deserve a place in a healthy diet but humans weren’t designed to eat one single food exclusively, even for a few days.’
Sardines-Only Diet Is Trending.
Apr 14, 2026 | 7:52 AM






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