That line is usually from clickbait posts, and the “shocking” claim is often exaggerated or misleading.
If it’s referring to spinach, the real, evidence-based points are:
Spinach is very healthy overall—it’s rich in vitamins (A, C, K), folate, and antioxidants. But there are a couple of caveats doctors sometimes mention:
- Kidney stones (in some people): Spinach is high in oxalates. In people prone to calcium-oxalate kidney stones, eating a lot of it frequently may slightly increase risk. For most people, it’s not an issue.
- Mineral absorption: The oxalates can reduce absorption of some minerals like calcium and iron from the same meal, but this is usually minor in a normal diet.
- Vitamin K interaction: Because spinach is high in vitamin K, it can affect blood-thinning medications (like warfarin), so consistency in intake matters for those patients.
So the “spinach causes…” type headlines usually omit the important context: it’s nutritious for most people, and only a concern in specific situations or excess intake.
If you want, paste the full post and I can break down exactly what it’s trying to claim.
