If you are trying to lose weight then no, you don't need extra fat. After all, you want to burn body fat. Just make sure you get enough protein.
If you're trying to maintain weight and be energetic you need to get enough calories and fat is a no cost, metabolically speaking, way to do that. I'm in maintenance so add fat to meals and also choose fatty cuts of meat when I cook on the weekend. I also have to cope with my wife cooking low fat a lot of the time so resort to pouring olive oil over food she serves and finishing my meal with some cheese
Four years Primal with influences from Jaminet & Shanahan and a focus on being anti-inflammatory. Using Primal to treat CVD and prevent stents from blocking free of drugs.
Eat creatures nose-to-tail (animal, fowl, fish, crustacea, molluscs), a large variety of vegetables (raw, cooked and fermented, including safe starches), dairy (cheese & yoghurt), occasional fruit, cocoa, turmeric & red wine