Sunflower Seeds: Nutrition, Calories & How to Eat Them in Canada

Sunflower seeds are everywhere in Canadian sport — baseball dugouts, hockey players on long bus trips, hikers on the AT. They’re cheap, shelf-stable, and one of the highest sources of vitamin E in the supermarket. The catch: most commercial sunflower seeds are aggressively salted, which turns a nutritious snack into a sodium bomb.

Nutrition per serving

A 30 g (about 1/4 cup shelled) serving of dry-roasted sunflower seeds contains: 165 calories, 5.5 g protein, 14 g fat (mostly polyunsaturated, including a notable linoleic acid contribution), 6 g carbs (3 g fibre), 11 mg vitamin E (74% of the Canadian RDA — the single highest source on most grocery shelves), 19 mcg selenium (35% RDA), 91 mg magnesium (23% RDA).

Vitamin E content is exceptional. Selenium is regional — Canadian-grown sunflower seeds (Manitoba, Saskatchewan) are particularly rich because Prairie soils are selenium-replete.

The salt problem

A 30 g serving of David salted sunflower seeds (the dominant brand at Canadian gas stations and grocery stores) contains 200 mg sodium — nearly 10% of the daily limit. Spitz salted seeds are similar. A standard 95 g pouch has 600–800 mg sodium, far more than any snack should contribute.

Unsalted dry-roasted (Costco, bulk-bin equivalents, in-shell unsalted) drops to under 5 mg sodium per 30 g — same nutrition without the kidney load.

The "lightly salted" labels can mean anywhere from 60 to 150 mg sodium — check the back of the bag.

In-shell vs shelled

In-shell sunflower seeds (the kind ballplayers crack with their teeth) take much longer to eat — useful if you’re prone to mindless snacking. The downside is that you can’t really clean them out of your teeth on a hike, and they create a lot of shell waste.

Shelled (pre-removed kernels) are quicker to eat and easier to add to salads, granola, or pesto. They’re also slightly cheaper per gram of edible food once you account for shell waste.

The shell itself is high in fibre but indigestible; eating it directly can irritate the gut and over time wear down tooth enamel.

The bottom line

Sunflower seeds are one of the most cost-effective ways to hit your daily vitamin E target in Canada. Choose unsalted bulk-bin or Costco bags over the David/Spitz salted gas-station packs — same nutrition, 95% less sodium.

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