If you’re searching for a THC edible dose, you’re trying to avoid the classic edible mistake: taking more because “nothing’s happening” and then getting hit all at once.
That worry is valid. Edibles can take time to show up, and labels can be confusing even when you’re doing everything right. Ontario also has a mix of formats on the market, which makes it easy to compare the wrong numbers.
Here’s the good news. Once you understand mg per piece, dosing becomes predictable.
- Dose = the amount of THC you take, measured in milligrams (mg).
- Your goal is to know how many mg are in one piece, then decide how much of that piece to take.
This guide walks you through the label math, common traps, and timing tips so you can make a confident choice.
Why “mg” matters more than “one gummy”
“Take one gummy” only works if all gummies are the same strength. They’re not.
What actually matters is milligrams of THC. That number is what your body responds to, not the shape, flavour, or brand name.
Regulated edible cannabis in Canada also has rules around THC content. For edible cannabis, the THC in an “immediate container” is limited to 10 mg THC, in part to reduce the risk of accidental overconsumption.
So when you see a package, think like this:
- Total THC in the package tells you the maximum THC available inside.
- Number of pieces tells you how the THC is split up.
- THC per piece is the number you use for dosing decisions.

How to calculate a THC edible dose from the label
The only math you need
You’re usually doing one of these:
- THC per piece = Total THC ÷ Number of pieces
- Your dose (mg) = THC per piece × How much of the piece you ate
That’s it.
If you can divide and multiply, you can dose edibles.
Real-world label examples
Let’s make it concrete.
Example A: 10 mg total, 10 pieces
- 10 mg ÷ 10 pieces = 1 mg per piece
If you eat 2 pieces, your dose is 2 mg.
Example B: 10 mg total, 2 pieces
- 10 mg ÷ 2 pieces = 5 mg per piece
If you eat half of one piece, your dose is 2.5 mg.
Example C: “Per piece” is listed already
Some packaging is kind and prints THC per piece clearly. If it says “2.5 mg THC per piece,” your math is done. Your job is choosing how many pieces (or fractions) match the experience you want.
How much THC should I take for my first edible?
This question usually means: “I don’t want to take too much, and I don’t know what ‘too much’ is.”
If you’re of legal age and choosing to use cannabis, Canadian harm-reduction guidance commonly recommends starting with a very low amount. For edibles, Health Canada suggests looking for products with 2.5 mg THC or less and waiting long enough to feel the full effects. The Canadian Centre on Substance Use and Addiction also recommends starting low, citing no more than 2.5 mg THC as a cautious starting point.
That doesn’t mean 2.5 mg is “perfect” for everyone. It means it’s a sensible place to begin if your goal is avoiding a rough time.
Here’s a practical way to think about it:
- If you’re new, choose a format where 2.5 mg is easy to measure.
- If the edible is 5 mg per piece, plan to take half (if it can be split cleanly).
- If it’s 10 mg per piece, that’s harder to portion. Consider a different format for your first try.

Timing: the part that causes most “too much” experiences
Most unpleasant edible stories start the same way: “I didn’t feel anything, so I took more.”
Edible effects can be delayed. Health Canada notes effects may be felt within 30 minutes to 2 hours, and it can take up to 4 hours to feel the full effects. Ontario’s public health info also highlights that edibles can produce stronger or more unpredictable effects for some people.
What that means in real life:
- Your first dose may feel like “nothing” at first.
- Your second dose might stack on top of the first right as it ramps up.
If you want a smoother experience, the best move is boring but effective: take your initial dose, then wait long enough to judge it.
Why edibles can feel stronger
With edibles, THC is processed differently than inhaled cannabis. Research literature notes that oral THC has delayed intoxication and variable effects, which can lead people to consume more than intended.
That “delayed and variable” part is exactly why dose math matters.
Edibles have evolved into something that overlaps food, lifestyle, and even gourmet branding. The New Yorker profile often nicknamed “the Martha Stewart of marijuana edibles” is a good example of how mainstream the edible world has become. https://www.newyorker.com/magazine/2017/04/24/the-martha-stewart-of-marijuana-edibles
Common label traps that confuse beginners
Even people who “read the label” can get tripped up. Here are the most common mix-ups.
- Total THC vs THC per piece
A package might say 10 mg THC total, but if it’s split into multiple pieces, each piece is lower. - “Per package” written in tiny text
Your eyes go to the big number. The dosing reality is usually in the smaller print. - Assuming every gummy is a standard dose
There is no universal “one gummy dose.” Always translate to mg. - Not noticing the number of servings
If the package lists “servings,” that’s another clue for how the THC is divided.
Health Canada’s “lower your risks” guidance specifically reminds people to read the label and note that the total THC in an edible cannabis package can be up to 10 mg.
Safer-use tips that keep the experience predictable
You don’t need a perfect plan. You need a simple one you’ll actually follow.
- Pick an evening with no driving and no major obligations.
Ontario’s guidance highlights impairment effects like reduced concentration and confusion. - Eat a small meal first if you’re sensitive.
Individual factors like metabolism and whether you ate can affect onset and intensity. - Start with a low mg amount, then wait long enough.
The “start low” approach and longer onset window are repeated across Canadian harm-reduction sources. - Avoid mixing with alcohol.
Combining substances can increase impairment and make effects harder to predict. - Store edibles like you would store candy you don’t want anyone grabbing.
Edibles can look like normal food, which increases the risk of accidental consumption.
What to order if you want easier dosing
If your main stress is “I can’t measure this cleanly,” choose products that make small doses simple.
Look for options where:
- THC per piece is clearly listed
- Pieces can be separated or portioned without guessing
- The package supports lower-dose decisions
When you’re ready to browse, start with edibles where the label makes the mg math easy: https://ontariothcdelivery.com/edibles/
Next step: get help choosing the right edible format
If you’re still thinking, “Okay, but what should I actually buy for my first order?” you’re not alone. The right answer depends on how cautious you want to be, how easily you want to portion, and whether you want a shorter or longer experience.
If you want help picking something that matches your comfort level, reach out and ask a quick question: https://ontariothcdelivery.com/contact/
FAQs
What is a good THC edible dose for beginners?
Many Canadian harm-reduction resources suggest starting with 2.5 mg THC and waiting to feel full effects before considering more.
How long should I wait before taking more THC edibles?
Effects can be felt within 30 minutes to 2 hours, and it can take up to 4 hours to feel the full effects. Waiting long enough helps avoid stacking doses.
Is 10 mg THC a lot in an edible?
For many beginners, 10 mg can feel strong. In Canada, edible cannabis has a 10 mg THC limit per immediate container, which is one reason labels often show 10 mg totals.
How do I calculate THC per gummy if the package only shows total THC?
Divide total THC by the number of gummies/pieces. Example: 10 mg total ÷ 5 pieces = 2 mg per piece.
Why do edibles feel different than smoking?
Edibles have delayed onset and can be less predictable in timing and intensity, which can lead people to take more than intended.