Aerifying larger lawns requires a power-driven core aerator or aerifier, which can be rented at lawn and garden supply centers. The working parts of these machines are spoon-shaped tines or hollow tubes. As the tubes are driven into the lawn, cores of soil are removed from the ground and strewn across the lawn.
Nutrients with the Highest Energy Density. Fat provides more calories than any other nutrient. The macronutrients -- fat, protein and carbohydrates -- are high in energy density, which means that they have 4 or more calories per gram. The other essential nutrients -- water, vitamins and minerals -- have no calories, so they provide no energy.
All the B vitamins, including vitamins B6 and B12, are important for the metabolism of carbohydrates, proteins and fats. Minerals such as magnesium are also important in energy metabolism. Foods high in B vitamins and magnesium include spinach, broccoli, beans, oats, fish, poultry and eggs.eart Health. Essential vitamins from your daily nutrition are also needed to prevent heart disease. Nutrients such as vitamins A, C, and E as well as beta carotene have antioxidant properties that help reduce inflammation, which may reduce the risk of heart disease.