Drinking 500ml of fluids can lead to a 30% increase in metabolism. The effect of water on the metabolism starts 10 minutes after swallowing, reaches its peak in 30-40 minutes and can last up to 1 hour. Thus, drinking 1.5 liters of water every day can increase your daily energy consumption by 48 calories.
Pasta does not make you gain weight: one serving (200g) corresponds to no more than 180kcal. Avoid fatty sauces and animal butter and add fresh tomatoes, onions, peppers, mushrooms, basil and a little olive oil.