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Chia seeds in a smoothie

The thickener that keeps working after you have stopped blending.

Short answer

About 1 tbsp in a glass — 12 g and 58 calories at that amount. The readings are 3 of 3 for thickening, 1 for creaminess and 0 for sweetness. Thickness is what chia seeds are really for. Whatever the blend needs on the other two axes has to come from somewhere else in the glass.

Chia is the strongest thickener for its weight, and it is the only ingredient that goes on thickening in the glass — each seed absorbs several times its own weight in liquid over a few minutes. That makes it the one boost where timing matters as much as quantity.

In the ratio model every ingredient fills one of five roles. Chia seeds are a boost: an optional extra that dials the texture up without adding liquid. That is what decides how much of it goes in, which is the next question on this page.

How many chia seeds to put in a smoothie

One tbsp per glass, which is 12 g. A boost is the one thing the ratio model trades against the liquid: add it and two tablespoons of liquid come back out, so the drink thickens without getting bigger.

Above one spoonful it goes past thick and into gluey, and no amount of blending brings it back. Below it you will not be able to tell it went in.

12 g
Typical, one glass

1 tbsp, portioned by the same model as the ratio calculator.

12–12 g
The whole range

The model portions one amount for this role, so there is no range to work within.

58
Calories per tbsp

Change the amount and this moves with it — the calorie calculator does the arithmetic as you build.

What chia seeds do to the texture

Every ingredient on this site is rated out of three on the only three jobs that matter in a blender. Those ratings are what the substitution engine scores against, so they are the same numbers the rest of the site works from.

Thickness 3 / 3
One of the strongest thickeners here

This is the top of the thickening scale. Whatever chia seeds goes into takes its texture from it, and taking it out is what leaves a blend watery.

Creaminess 1 / 3
A trace of creaminess

The edges soften slightly. That is the difference between a blend that tastes finished and one that tastes like fruit and water, but the mouthfeel is not being carried here.

Sweetness 0 / 3
No sweetness of its own

None at all. Every bit of sweetness in the glass has to come from the fruit or from something added for the purpose, which is useful when you want to control it.

Thickness is what chia seeds are really for. Whatever the blend needs on the other two axes has to come from somewhere else in the glass.

Chia seeds nutrition

Per 100 g so it can be compared against anything, and per tbsp so it matches what actually goes in the jar. One tbsp of chia seeds weighs 12 g.

Basis
Calories
Protein
Carbs
Sugar
Fat
Per 100 g 100 g · 34 g fiber
486 kcal
17 g
42 g
0 g
31 g
Per tbsp 12 g · 4.1 g fiber
58 kcal
2 g
5 g
0 g
3.7 g

Figures for chia seeds. Everything on the site — every recipe, every calculator — sums from these same numbers, so a total you see elsewhere will always agree with this table.

What goes well with chia seeds

Its best partners

mixed berries , almond milk , banana , greek yogurt and rolled oats . Each of those either covers something chia seeds do not do, or leans the same way hard enough to make the drink taste deliberate.

Recipes that already use it

33 pairings on the site put chia seeds in the glass, with the amounts and the macros already worked out — here are 8 of them.

What to use instead of chia seeds

Each stand-in is scored against chia seeds on all three jobs at once, by the same engine behind the substitution calculator. Calories and sugar are for one everyday measure of the replacement; the smaller figure underneath is the difference against the same measure of chia seeds.

Swap
Thickness
Creaminess
Sweetness
Calories
Sugar
Ground Flax Seeds Per tbsp · keeps 8 of 9 · listed swap
Close
Match
Match
37 -21
0 0
Hemp Seeds Per tbsp · keeps 7 of 9 · listed swap
Differs
Match
Match
55 -3
0 0

Build a blend around it

Put chia seeds in, add whatever else is in the kitchen, and watch the calories and macros move as you go.

Open the calorie calculator

Estimates, not advice. Every figure on this page is calculated from published per-100 g reference values and standard household measures, so your own brands, portions and equipment will move it. Nothing here is medical, nutritional or dietetic advice — talk to a qualified professional before acting on it, particularly if you are pregnant, managing a health condition, or feeding a child.

FAQs

Frequently Asked Questions

More on blending with chia seeds

Do you soak chia seeds before blending?

Not for a smoothie you are drinking now — the seeds swell in the glass and that is the effect you want. Soaking first, for ten minutes in a little of the liquid, is worth doing when you are making the blend ahead: it gets the thickening over with before it goes in the fridge, so you know what you are pouring later. What you should not do is over-blend them once they are wet, which turns the drink gluey rather than thick.

Whole or ground chia?

Whole, for texture. Ground chia thickens faster and more evenly but loses the gel-bead quality people are usually after. Either way the blend needs its liquid adjusted — a thickener going in means liquid coming back out, which is what the ratio calculator does for you.

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