I'm wondering why are complex carbs okay to eat when dieting?

Not ok, essential!: Fiber aids in elimination and detoxification. Enzymes help with digestion and absorption of protein. Vitamins and minerals support vital metabolic functions and the manufacture of hormones and neurotransmitters. Antioxidants reduce inflammation. And, most importantly, complex carbs reduce after-meal spikes in blood sugar and triglycerides-the true dietary meaning of life.