Nuts & seeds
Nuts and seeds are the most energy-dense plant foods, and that's the point: they store a plant's future in a compact package of healthy unsaturated fats, protein, fibre and minerals. Almonds are notable for vitamin E and magnesium, walnuts for plant omega-3s, and pumpkin and sunflower seeds for zinc and iron. Despite being high in fat, they're consistently linked in research to better heart health.
The flip side of that nutrient density is calories — a small handful can carry as much energy as a meal's worth of vegetables, so portion size matters if you're watching your weight. Choosing raw or dry-roasted over salted, oil-roasted or sugar-coated versions keeps the sodium and added calories in check. Nut and seed butters share the same profile, minus any added oil and sugar.
Explore every nut and seed per 100 g, with rankings to compare protein, fibre and mineral content.