Can eating too much kale have negative effects on my health?

Kale is a healthy vegetable, but eating too much of it can have some negative effects. This is because kale contains oxalates. Oxalates are natural compounds found in many foods, and they can affect your body, especially if consumed in large amounts.

1. Oxalates and Health: Foods high in oxalates, like kale, can contribute to the formation of kidney stones in some people. This is because oxalates can combine with calcium in the body to form crystals.

2. Iron Absorption: While oxalates are present in kale, they do not interfere with the absorption of non-heme iron, the type of iron found in plant foods. This means that eating kale won't prevent your body from getting the iron it needs from other plant sources.

3. Other Nutrients: Kale is also rich in nutrients like lutein and zeaxanthin, which are beneficial for eye health. These nutrients are important in reducing the risk of age-related eye issues.

In summary, while kale is nutritious, it's important to eat it in moderation to avoid potential negative effects from high oxalate levels.