Foods/Vegetables/Onion
O
Vegetables · meal

Onion

1 serving · 100 g40 kcal

A balanced vegetable contributor — a little of a lot, with no single standout.

Macros

Per serving

40 kcal
Energy
1.1g
Protein
9.3g
Carbs
0.1g
Fat
1.7g
Fiber
Protein 1.1 gCarbs 9.3 gFat 0.1 g
40 kcal / 100 g. This record’s serving is 100 g — both columns match.
What a serving covers

% of a day’s needs

Per 1 serving (100 g), as a share of a reference adult — male, 35, moderately active.

Balanced contributor. Nothing here clears 20% in a serving — onion gives a little of a lot. The bars are short on purpose; that’s honest.
Good source of
No single standout — and that’s fine.
Nothing in onion clears 20% of a day’s RDA in one serving. It’s a balanced contributor: a little of several nutrients, best read as a base the solver builds on.
Pairs well with

What fills onion’s gaps?

Onion is lighter on Vitamin D, Calcium — these round it out into a fuller glass.

Build this into your day

Pairings are computed from the solver.

How much to use

The realistic dose

A serving or two fits comfortably.
Serving: 1 serving = 100 g
Generous to use, with room before it crowds out variety.
Common questions

Onion, in brief

How many calories are in onion?
1 serving (100 g) of onion has about 40 calories.
What is onion high in?
Onion has no single standout nutrient — it's a balanced contributor, with Vitamin B6 highest at 9% of a day's needs.
Is onion good in a smoothie?
S8D usually places onion as a meal-role food alongside the smoothie.
Keep exploring

More vegetables

All foods →
Nutrient guides

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