English walnuts are dense at 654 kcal and 65.2 g fat per 100 g. Near the top of tree-nut calorie density. A 30 g handful is ~195 kcal. Portion errors on calorie-dense foods reach 50–200% (Almiron-Roig et al., Appetite 2013). Weigh rather than eyeball, and keep the bag closed.
How should I track Walnuts, english?
Walnuts, english is high in magnesium. Nuts like Walnuts, english 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.