Seed oils are not inherently "bad" for you, but overuse, especially in processed foods or at high temperatures, can be detrimental. Balancing them with healthier fat sources is the key to their safe inclusion in a diet. The issue with seed oils isn’t necessarily the oils themselves but how they fit into the overall diet. If consumed in moderation and paired with a good intake of omega-3s (from sources like fish, flaxseeds, and walnuts), the negative effects may be minimized.