A 5mg edible typically produces effects that last six to eight hours from start to finish, with the most intense period hitting around three hours after you eat it. That’s considerably longer than smoking or vaping, and the reason comes down to how your body processes THC when you swallow it rather than inhale it.
The Full Timeline of a 5mg Edible
Edibles follow a slow, predictable arc. You’ll start feeling effects 30 to 60 minutes after eating one, though it can take longer depending on factors like whether you’ve recently eaten. The effects build gradually from there, reaching peak intensity around the three-hour mark. After peaking, the high tapers off over the next several hours, with total effects lasting six to eight hours for most people.
Colorado’s state cannabis guidelines recommend waiting at least eight hours after consuming less than 18mg of THC before driving or doing anything safety-sensitive. For a 5mg dose, that eight-hour window is a reasonable benchmark.
Why Edibles Last So Much Longer Than Smoking
When you smoke or vape cannabis, THC enters your bloodstream through your lungs and reaches your brain within minutes. Edibles take an entirely different route. The THC travels through your digestive system, gets absorbed through the intestinal walls, and then passes through your liver before entering general circulation.
That liver step is the key difference. Your liver converts THC into a different compound that crosses into the brain more efficiently and produces a more intense, longer-lasting effect than THC itself. This conversion only happens with oral consumption, which is why edibles feel fundamentally different from smoking rather than just being a delayed version of the same experience.
What Makes Your Experience Shorter or Longer
Six to eight hours is the average range, but your individual experience can fall outside it. Several factors push the timeline in one direction or the other.
Whether you’ve eaten recently: Taking an edible on an empty stomach means faster absorption, a quicker onset, and a more intense but shorter-lived high. Eating it on a full stomach, especially with fatty foods, slows everything down. The onset takes longer, the effects feel less sharp, and the overall duration stretches out. Fats increase THC’s bioavailability, meaning more of the compound actually makes it into your bloodstream, creating a slower and more sustained effect.
Your metabolism and genetics: Your liver enzymes determine how quickly your body processes THC. Some people are genetically slower metabolizers, meaning their bodies convert THC more gradually. For these individuals, effects can be more pronounced and last longer at the same dose. There’s no easy way to know which category you fall into without trial and experience, which is one reason 5mg is widely considered a starting dose.
Tolerance: Regular cannabis users will feel a 5mg edible for a shorter period and with less intensity than someone trying edibles for the first time. If you rarely use cannabis, expect the effects to land on the longer end of the range.
What the Day After Looks Like
Even after the primary high fades, some people notice residual effects the following morning, sometimes called a “weed hangover.” This can include grogginess, mild brain fog, or feeling slightly off. Higher THC blood levels the morning after use can even cause a person to still feel mildly high. Not everyone experiences this, and research on next-day cognitive effects has produced mixed results. At a 5mg dose, lingering effects are less likely than with higher doses, but they’re possible if you’re sensitive to THC or took the edible late in the evening.
Why 5mg Is the Standard Starting Point
Most regulated cannabis markets define a single serving as 5mg or 10mg of THC. For someone without an established tolerance, 5mg generally produces mild to moderate effects: light euphoria, relaxation, and some change in sensory perception. It’s strong enough to feel but unlikely to cause the anxiety or discomfort that higher doses can trigger in new users.
The most common mistake with edibles is not waiting long enough for them to kick in. Because onset can take 30 to 60 minutes, and sometimes longer, people often assume their dose isn’t working and take more. By the time both doses hit, they’re dealing with a much stronger experience than intended. If you don’t feel anything after an hour, waiting at least another 30 to 60 minutes before considering a second dose helps avoid that scenario.