Question: what are the unhealthiest nuts?
Answer: Worst nuts for your diet Ounce for ounce, macadamia nuts (10 to 12 nuts; 2 grams protein, 21 grams fat) and pecans (18 to 20 halves; 3 grams protein, 20 grams fat) have the most calories - 200 each - along with the lowest amounts of protein and the highest amounts of fats.