Green Leafy Vegetables Linked to Lower Chronic Disease Risk, Sweet Potato Flagged for High Glycemic Index

Daily intake of leafy green vegetables such as spinach, kale, broccoli, and lettuce is associated with up to a 30% reduction in the risk of chronic diseases, including a 25% lower chance of death from coronary heart disease and stroke. The benefits are attributed to nutrients like natural nitrates that improve blood vessel function, vitamin K1 for arterial and bone health, lutein for brain protection, and folate for DNA repair.

In contrast, nutritionists note that sweet potato (camote) has a higher glycemic index and carbohydrate content, which can cause rapid blood‑sugar spikes, especially in people with diabetes. While it remains a source of vitamin A and fiber, its starch profile makes it less favorable compared to other vegetables for blood‑glucose management.