Nuts and Seeds: Which Are the Healthiest?

Nuts and seeds are consistently linked to better heart health and are one of the most nutrient-dense snack options available, but they're not all nutritionally identical.

Why nuts and seeds are nutrient-dense

Most nuts and seeds provide a combination of unsaturated fats, fiber, plant protein, and micronutrients like magnesium, vitamin E, and zinc — a profile linked in research to modest improvements in cholesterol levels and heart disease risk markers.

How the common options compare

Walnuts stand out for omega-3 fatty acids (ALA). Almonds are relatively high in vitamin E and fiber. Pistachios have one of the higher protein-to-calorie ratios among nuts. Chia and flax seeds are notably high in fiber and omega-3s for their size. Brazil nuts are extremely concentrated in selenium — just one or two a day covers typical needs.

Calories add up fast

Nuts and seeds are calorie-dense — roughly 160-200 calories per small handful (about an ounce) — so portion awareness matters more here than with most whole foods if you're tracking calorie intake.

Best ways to include them

A small daily handful added to yogurt, oatmeal, or salads, or eaten as a standalone snack, is a common way to work them in without overdoing portions. Raw or dry-roasted, unsalted versions avoid the extra sodium and oil found in some flavored varieties.

A note on allergies

Tree nut and peanut allergies are common and can be severe — always check labels for cross-contamination warnings if you or someone you're cooking for has a known allergy.