When it comes to whether or not Walmart is DEF OK, there are a few key things to consider. First and foremost, Walmart is the largest retailer in the world, so it's definitely a major player in the retail industry. However, there have been some controversies surrounding Walmart in recent years. For example, in 2015, Walmart was accused of violating child labor laws in Bangladesh. Additionally, some workers have complained about low wages and poor working conditions at Walmart stores. Overall, though, Walmart is still a very large and successful company.