If you want to diet and improve your nutrition, focus on consuming a balanced range of foods high in important nutrients. Increase whole grains, fruits, vegetables, lean meats, and healthy fats in your diet. Eat fewer processed foods, sweets, and bad fats. In addition, drink lots of water to stay hydrated. Mindful eating and portion control can also help with weight management. Optimization of nutrition and diet can also be done through a nutritionist who gives custom advice.