Macronutrients (macros) are nutrients your body needs in large amounts: carbohydrates (4 cal/g), protein (4 cal/g), and fat (9 cal/g). Each serves different functions.
General recommendation: 0.8g per kg body weight for sedentary adults. Active individuals need 1.2-2.0g/kg. Athletes building muscle may need up to 2.2g/kg.
There's no universal 'best' ratio. Common approaches: Balanced (40/30/30 carb/protein/fat), Low-carb (30/40/30), or Keto (5/25/70). Choose one you can sustain.
No. Unsaturated fats (olive oil, avocado, nuts, fish) are heart-healthy. Saturated fats (butter, red meat) should be limited. Trans fats (processed foods) should be avoided entirely.
Not necessarily. Counting helps initially for awareness, but many people succeed with portion control, mindful eating, and focusing on whole foods without strict tracking.
Micronutrients are vitamins and minerals needed in small amounts but essential for health: vitamin D, iron, calcium, B12, magnesium, zinc, and others. Eat a varied diet to cover needs.