4. Beef liver
It might not sound appealing, but organ meats, such as beef liver, are believed to be among the most powerful superfoods a person can eat. It’s high in essential nutrients, including iron. Serving size of 3 ounces of beef liver contains more than 5 mg of iron, making it one of other vitamins and minerals, including vitamin A, B vitamins (particularly vitamin B12), folate, protein, and more, making it one of the most nutrient-dense foods.
Given all of the nutrients found in beef liver, it not only helps to boost iron levels, but it can also improve the function of your liver (go figure!), boost bone and muscle health, fight off free radical damage, thus preventing cancer treatment and cognitive decline in the form of dementia and Alzheimer’s disease. There are several ways you can enjoy beef liver; sautéed, fried, or grilled. Add spices to improve the taste.