← All comparisons Greens powder

Circadia vs.
AG1.

Strip away the marketing and AG1 is a greens-flavoured multivitamin: dozens of ingredients in a blend you cannot see, in a taste most people endure rather than enjoy. The breadth does not justify the experience. We chose fewer ingredients, dosed to matter, in something you actually look forward to.

AG1 is made by AG1.
The scorecard
11 / 14 dimensions where Circadia leads AG1. Matched on the rest.
Canadian owned & operated Circadia leads
Circadia Canadian owned, operated, and founded
AG1 US brand
Sleep & recovery support Circadia leads
Circadia DRIFT is built for the wind-down
AG1 Morning only, nothing for the night
Time-of-day design Circadia leads
Circadia Two cans, dosed by hour. RISE a.m., DRIFT p.m.
AG1 One scoop, every morning

One blend, regardless of what the hour needs.

Targeted to real gaps Circadia leads
Circadia Vitamin D, choline, magnesium, glycine
AG1 Around 75 ingredients, kitchen-sink

A long list is not the same as the right list.

Honesty of claims Circadia leads
Circadia Every milligram on the label
AG1 Proprietary blend, doses hidden

You cannot see how much of most things you get.

Ingredient form & quality Circadia leads
Circadia Magnesium glycinate, not oxide
AG1 Forms and amounts undisclosed
Stack synergy Circadia leads
Circadia Ingredients chosen to work together
AG1 Kitchen-sink, not synergistic
Depth of formula Circadia leads
Circadia Full functional stack, every dose printed
AG1 Broad, but most doses hidden

Depth you cannot verify is not depth you can trust.

Real-ingredient flavour Circadia leads
Circadia Real juice and botanicals
AG1 Greens taste, heavily masked
Electrolyte balance Circadia leads
Circadia Potassium-led, deliberately low sodium
AG1 Some minerals, not a balance
Packaging Circadia leads
Circadia Recyclable aluminium can
AG1 Powder, plastic tub and sachets
Caffeine approach Both deliver
Circadia 50 mg green tea in RISE, 0 in DRIFT
AG1 None
Artificial colours / flavours Both deliver
Circadia None. Juice and vegetable for colour
AG1 No artificial colours
Sweetener Both deliver
Circadia A little organic cane and real juice
AG1 Stevia, under 1g sugar (12g scoop)
Where the gap opens
01

A multivitamin in a costume

For all the ceremony, AG1 is essentially a broad multivitamin in powder form, and a long ingredient list does not change that. The breadth is the marketing, not the benefit. We would rather do a few things genuinely well than many things faintly.12

02

A long list hides the doses

Most of those ingredients sit inside a proprietary blend, so you cannot see how much of each you actually get. Independent reviewers at McGill have repeatedly questioned how much real-world benefit that breadth delivers. Circadia prints every milligram, because a number you cannot read is a number you cannot trust.13

03

Energy, focus and calm do not belong in one scoop

Different nutrients pull in different directions. The things that help you wind down, like magnesium and glycine, are not the things you want at 7 a.m., and a stimulant-free morning greens powder ignores the clock entirely. Pouring all of it into a single breakfast scoop is convenient, not physiological. We split the day on purpose: RISE to climb, DRIFT to come down.24

04

More is not the goal, right is

Flooding a scoop with a little of everything is not the same as a meaningful dose of the few things you are short on. We pick vitamin D, choline, magnesium and glycine, the gaps with the best evidence for Canadians, then dose them to matter.56

05

Form matters as much as amount

It is not just how much, it is which version. We use magnesium glycinate, the absorbable amino-acid-bound form, rather than the cheap oxide that mostly passes through. AG1 does not disclose the forms and doses of most of its ingredients.7

06

Something you enjoy, not endure

A daily ritual you have to talk yourself into is not much of a ritual. RISE and DRIFT are built to taste like something you reach for, with real juice and botanicals, not a grassy scoop you tolerate for the supposed virtue of it.

07

One scoop cannot know the hour

AG1 is a single morning ritual for a body that has two very different halves of a day. Circadia is two cans built for each.48

Sources
  1. 1 McGill Office for Science and Society. You probably do not need a green AG1 smoothie: the evidence behind all-in-one greens powders is thin. View source ↗
  2. 2 McGill Office for Science and Society. AGZ: more shaky science from the makers of AG1. View source ↗
  3. 3 NIH Office of Dietary Supplements. Most people consume less choline than the Adequate Intake. View source ↗
  4. 4 Cortisol follows a daily rhythm, climbing in the morning and falling at night. Intake can be timed to it. View source ↗
  5. 5 Statistics Canada. A meaningful share of Canadians have vitamin D blood levels below the recommended threshold, especially in winter. View source ↗
  6. 6 NIH Office of Dietary Supplements. Many adults take in less magnesium than the estimated average requirement. View source ↗
  7. 7 Schuette et al. (1994), JPEN. Magnesium bound to an amino acid (glycinate) is absorbed more efficiently than poorly soluble magnesium oxide. View source ↗
  8. 8 Drake et al. (2013), J Clin Sleep Med. Caffeine taken even 6 hours before bed measurably reduced sleep. View source ↗

Competitor figures are approximate, drawn from publicly available nutrition information, and vary by flavour, size and region. Circadia values reflect our standard 355 ml can. Nothing here is medical advice.

Competitor information accurate as of July 30, 2026.

Read the label. Then read ours.

Four to five grams of sugar. Four nutrients that matter, in forms that absorb. Timed to your day.