Walmart is known for its vast array of products, but certain items consistently top the sales charts. Among these, groceries, particularly fresh produce and packaged food, tend to be the most popular. Additionally, household essentials like cleaning supplies and personal care products also see high sales volumes. In summary, Walmart's best-selling items primarily include groceries, especially fresh produce and packaged foods, along with household necessities such as cleaning and personal care products. These categories dominate the sales figures, reflecting the store's focus on everyday essentials for its customers.