We often receive advice from doctors or dietitians to maintain a balanced diet, including protein, carbs, vitamins, etc., because each nutrient plays a different role in the body. For instance, protein aids muscle repair and growth, especially crucial for physically active individuals or those engaged in strength training. The same idea applies to investing money. To make our money grow, we need to spread it out across different types of investments, like stocks, bonds, commodities, real estate etc. Each investment type helps our money grow in its own way. Just like we need a mix of foods for a healthy body, we need a mix of investments for a healthy investment portfolio.