Pecans have 72 g fat per 100 g – the fattiest common tree nut. At 691 kcal per 100 g, a single pecan half weighs roughly 4–5 g, meaning 10 halves deliver 280–350 kcal. Portion research (Almiron-Roig et al., Appetite 2013) found 50–200% errors for calorie-dense foods. Count and weigh for accuracy.
How should I track Pecans?
Pecans is high in zinc. Nuts like Pecans are one of the easiest foods to overeat. Research on portion estimation (Almiron-Roig et al., Appetite 2013) found that people underestimate calorie-dense foods by 50–200% when eyeballing portions. A small handful can easily be 300+ calories. The best habit: pre-portion into 30 g bags or use a scale each time. Also check whether your nuts are raw, roasted, or roasted-in-oil — the roasted-in-oil versions add extra fat that is not in the raw nutrition values.