Sugar and fats are both compounds present in nature, and evolution hardwired us to search them out as high calorie sources. Modern food processing has drastical

Sugar and fats are both compounds present in nature, and evolution hardwired us to search them out as high calorie sources. Modern food processing has drastically lowered the cost/increased availability of those substances, allowing individuals and companies to increase the amount included in prepared/processed food. Oils are necessary to life and sugars aren't, is the only difference really. Eat food, mostly plants, not too much.