← All comparisons Meal-style super-shake

Circadia vs.
Rumble.

A real-food shake meant to stand in for a meal, with the calories to match, in a plastic bottle. Circadia is the opposite by design: not a meal, just the targeted nutrients a normal diet misses, timed to the clock.

Rumble is made by Rumble Supershake.
The scorecard
7 / 14 dimensions where Circadia leads Rumble. Matched on the rest.
Time-of-day design Circadia leads
Circadia Two cans, dosed by hour. RISE a.m., DRIFT p.m.
Rumble One bottle, usually a.m.

A breakfast stand-in, not a two-part day.

Sleep & recovery support Circadia leads
Circadia DRIFT is built for the wind-down
Rumble A meal, any time of day
Packaging Circadia leads
Circadia Recyclable aluminium can
Rumble Plastic bottle

The whole-food story stops at the bottle.

Targeted to real gaps Circadia leads
Circadia Vitamin D, choline, magnesium, glycine
Rumble Protein (16 to 20g), fats, fibre (8g)

Built to feed you, not to fill gaps.

Stack synergy Circadia leads
Circadia Ingredients chosen to work together
Rumble A whole-food blend
Ingredient form & quality Circadia leads
Circadia Magnesium glycinate, not oxide
Rumble Whole-food ingredients
Electrolyte balance Circadia leads
Circadia Potassium-led, deliberately low sodium
Rumble Light
Depth of formula Both deliver
Circadia Full functional stack, every dose printed
Rumble Broad, meal-style
Honesty of claims Both deliver
Circadia Every milligram on the label
Rumble Honest, meal-replacement framing
Caffeine approach Both deliver
Circadia 50 mg green tea in RISE, 0 in DRIFT
Rumble None
Real-ingredient flavour Both deliver
Circadia Real juice and botanicals
Rumble Real whole-food taste

Genuine credit here.

Artificial colours / flavours Both deliver
Circadia None. Juice and vegetable for colour
Rumble Real ingredients, clean

A genuine whole-food label.

Sweetener Both deliver
Circadia A little organic cane and real juice
Rumble Dates, real food

Genuinely whole-food. Credit there.

Canadian owned & operated Both deliver
Circadia Canadian owned, operated, and founded
Rumble Canadian (Victoria)

Home team.

Where the gap opens
01

We are not trying to be lunch

Rumble packs around 250 calories of protein and fats to stand in for a meal. Circadia is the deliberate opposite: not enough to replace food, just the few nutrients a normal diet tends to miss. Different tools for different problems.1

02

Broad nutrition, no aim

A meal shake spreads a little across everything to feed you. We concentrate the formula on vitamin D, choline, magnesium and glycine, then dose each to actually register, in absorbable forms.234

03

A meal has no clock, and comes in plastic

Rumble is one bottle, usually breakfast, in single-use plastic. Circadia is two moments by design, RISE to climb and DRIFT to wind down, in a recyclable can.56

Sources
  1. 1 NIH Office of Dietary Supplements. Most people consume less choline than the Adequate Intake. View source ↗
  2. 2 Statistics Canada. A meaningful share of Canadians have vitamin D blood levels below the recommended threshold, especially in winter. View source ↗
  3. 3 NIH Office of Dietary Supplements. Many adults take in less magnesium than the estimated average requirement. View source ↗
  4. 4 Schuette et al. (1994), JPEN. Magnesium bound to an amino acid (glycinate) is absorbed more efficiently than poorly soluble magnesium oxide. View source ↗
  5. 5 Cortisol follows a daily rhythm, climbing in the morning and falling at night. Intake can be timed to it. View source ↗
  6. 6 Qian et al. (2024), PNAS. Bottled water carried roughly a quarter-million plastic particles per litre, most of them previously undetected nanoplastics. 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.

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