Affiliate disclosure
We earn a commission if you buy Summit through the links on this page. It did not buy a favourable review.
Summit sells legal psychoactive hemp gummies — Delta-9 THC, Delta-8 THC and HHC — with, the company says, hundreds of five-star reviews and a strong subscriber base. On most sites this would be a straightforward product review. On a weight-loss site there is one fact that has to come first, and it is not a matter of opinion.
THC Is Literally an Approved Appetite Stimulant
THC works by activating CB1 receptors, and CB1 activation increases appetite and food reward. This is not an anecdote about the munchies — it is the basis of an approved medicine. Dronabinol, a synthetic THC, is FDA-approved as an appetite stimulant for AIDS-related anorexia.
The reverse was also tested. Rimonabant, which blocks CB1, was approved in Europe as a weight-loss drug and produced real weight loss — before being withdrawn in 2008 over psychiatric side effects including depression and suicidality.
Read those two facts together and the position is unambiguous. Turning CB1 on is an approved way to make people eat more. Turning it off was an approved way to make people eat less. The receptor has been tested in both directions, in humans, by regulators.
So a THC product is not neutral with respect to weight, and it is not merely unhelpful. It acts on the appetite system in the opposite direction to the treatment many of our readers are paying for. A GLP-1 reduces appetite; THC increases it. Taking both is spending money to fight yourself.
Summit does not claim otherwise, to be fair — it sells these as recreational products, not as wellness or weight products. We are supplying the context, not correcting a claim.
The Cannabis-BMI Paradox, Honestly
There is a counter-argument and we should present it rather than pretend it does not exist. Population studies have repeatedly found that cannabis users have lower average BMI than non-users, despite reporting higher calorie intake. It is a real and much-discussed observation.
It does not support using THC to manage weight, for several reasons. The data are observational, so they cannot establish causation and are open to confounding by age, activity, smoking status and socioeconomic factors. Proposed mechanisms such as CB1 receptor downregulation in chronic users are hypotheses rather than established findings. And nobody has run the trial that would matter — a controlled study of THC given for weight loss.
Against that sits a drug approved to stimulate appetite and a CB1 blocker that worked for weight loss. The mechanistic evidence and the epidemiological correlation point different ways, and when that happens the honest answer is that the correlation is not a basis for action.
Delta-8 and HHC Are Made in a Lab
Concentrated Delta-8 THC is typically manufactured by chemically converting hemp-derived CBD. The FDA notes this process is not regulated, that it produces variability in formulation and labelling, and that some manufacturers may use potentially unsafe household chemicals to carry out the conversion.
This is the part buyers most often get wrong. Delta-8 and HHC are marketed within the language of hemp and nature, and they do originate from a hemp molecule. But they are present in the plant only in trace amounts, so commercial quantities are made by chemical synthesis. That makes them semi-synthetic cannabinoids produced in an unregulated process.
The consequence is that what ends up in the gummy may include unreacted reagents, catalysts and conversion byproducts whose identity and toxicology are not established. Delta-9 THC, whatever else you think of it, is at least a well-characterised molecule with decades of study behind it. These are not — and the same “natural” framing problem we set out in our Kingdom Kratom review applies here in a more literal form.
The practical response is to demand a full-panel certificate of analysis for your batch — not only cannabinoid potency, but residual solvents and heavy metals. In this category that is the single most useful thing you can ask for, and a vendor unwilling to provide it has answered you.
The Adverse Event Numbers
| Source | Reports |
|---|---|
| FDA, Dec 2020 – Feb 2022 | 104 adverse event reports from delta-8 THC products |
| FDA, Jan 2021 – Dec 2023 | Over 300 reports in children and adults |
| Poison control centres, Jan 2021 – Feb 2022 | 2,362 delta-8 exposure cases |
Reported effects include hallucinations, vomiting, tremor, anxiety, dizziness, confusion and loss of consciousness. Most involved adults, but a meaningful number involved children under 18 — which is the predictable consequence of selling an intoxicant shaped and flavoured like confectionery. If there are children in your home, these need to be stored like medication, not like sweets.
Why Gummies Specifically
Edibles carry a dosing problem that inhaled cannabis does not. Onset is delayed — commonly 30 minutes to two hours — so the standard error is taking a second dose before the first has arrived, then receiving both at once. Most acute cannabis distress presentations follow that pattern.
There is a further wrinkle specific to this audience. GLP-1 medications delay gastric emptying, which means an edible may take substantially longer to take effect than you expect — making the redosing mistake more likely, not less. That interaction is not widely discussed and it follows directly from the mechanism described in our GI side effects guide.
One more, since this site is about appetite: cannabinoid hyperemesis syndrome — cyclical severe vomiting in regular cannabis users — is a recognised condition, and it can be difficult to distinguish from GLP-1 nausea. Someone on both who develops persistent vomiting may have the cause misattributed.
The Legal Position
These products are legal via a definitional gap. Federal law defines hemp by delta-9 THC as a percentage of dry weight, so a sufficiently heavy gummy can hold a clearly intoxicating dose while remaining below the percentage threshold. Delta-8 and HHC occupy a further grey area, since they are neither the scheduled molecule nor obviously covered by the hemp definition.
Two practical consequences. State law varies widely and some states have banned these products outright — check yours. And these will show up on a drug test: standard immunoassays detect THC metabolites and do not distinguish delta-8 from delta-9. If you are drug tested at work, legality is not the relevant question.
Pros and Cons
Pros
- Sold honestly as a psychoactive product, not disguised as wellness
- Custom-infused gummies should dose more consistently than sprayed products
- Stated emphasis on consistency between batches
- Established subscriber base suggests repeat satisfaction
Cons
- CB1 agonism increases appetite — works against a GLP-1
- Delta-8 and HHC are semi-synthetic, made in an unregulated process
- FDA has warned about household chemicals used in conversion
- 2,362 poison control exposures in 14 months; 300+ FDA reports
- Candy format and pediatric exposure reports
- Delayed onset plus GLP-1 gastric delay raises redosing risk
- Will fail a standard drug test
- We could not verify pricing, potency or published COAs
Who Should Use It
We are not going to moralise about recreational cannabis. Adults make that choice and it is not this site’s business. What is our business is telling readers what it does to appetite, and the answer is that it increases it through a receptor with an approved drug on each side.
If you use it anyway: choose Delta-9 over Delta-8 and HHC, because it is a known molecule rather than a synthesis product. Demand a full-panel certificate of analysis including residual solvents. Start at a low dose and wait at least two hours before considering more — longer if you are on a GLP-1. Store it away from children.
Do not use it if you are on a GLP-1 and struggling with appetite control or nausea, you are drug tested at work, you are pregnant or breastfeeding, or you have a history of psychosis or significant anxiety. And if evening appetite is the actual problem you are trying to solve, our Headspace review and Octave review cover approaches that work with your goal rather than against it.
Limitations of This Review
Checked on 7 August 2026. We could not verify Summit’s pricing, per-gummy potency, product range, published certificates of analysis, testing practices, state shipping restrictions, or the cited five-star review volume. Its self-description is quoted as marketing copy. The FDA and poison control figures relate to delta-8 THC products generally, not to Summit specifically, and adverse event databases record reports rather than proven causation. Statements about CB1 pharmacology, dronabinol and rimonabant come from published sources and regulatory history. Cannabis law varies by state and changes; verify your own. Nothing here is medical advice.
Frequently Asked Questions
Does THC make you hungry?
Yes, and this is well established rather than folklore. THC activates CB1 receptors, which increases appetite and food reward. Dronabinol, a synthetic THC, is FDA-approved as an appetite stimulant for AIDS-related anorexia. Rimonabant, a drug that blocks CB1, was approved in Europe as a weight-loss treatment before being withdrawn in 2008 over psychiatric side effects. The receptor works in both directions.
Are Delta-8 and HHC natural?
Not in any meaningful sense. Both are typically manufactured by chemically converting hemp-derived CBD, in a process the FDA notes is unregulated. The agency has warned that some manufacturers may use potentially unsafe household chemicals in that conversion, and that it leads to variability in formulation and labelling.
Is this safe to combine with a GLP-1?
We would not. Beyond the appetite effect working directly against the medication, THC can cause nausea and vomiting in some users, and cannabinoid hyperemesis syndrome is a recognised condition in regular users. GLP-1s already cause nausea in a large share of patients.
How is this legal?
Through a hemp loophole. Federal law defines hemp by delta-9 THC content as a percentage of dry weight, so a heavy gummy can contain an intoxicating dose while staying under the threshold by percentage. Delta-8 and HHC sit in a further grey area. State law varies considerably.
Verdict
2.2 / 5
Honest about being a psychoactive product, which is more than much of this category manages. But it acts directly against what our readers are trying to do, and two of the three cannabinoids are unregulated synthesis products.
The rating reflects the audience. A general lifestyle site might reasonably score this higher — Summit sells its products as what they are, which is refreshing next to the hemp brands implying medical benefit.
But the fact that settles it is one most people have never been told: synthetic THC is an FDA-approved appetite stimulant, and a drug that blocked the same receptor was approved for weight loss. That is the mechanism, tested in both directions. If you are paying for a medication to reduce your appetite, this is the other lever.
Supplement Disclaimer & Review Date
These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Dietary supplements are not FDA-approved medications, are not reviewed by the FDA for safety or effectiveness before they go on sale, and are not a substitute for prescription treatment.
Nothing on this page is medical advice, and nothing here should be read as a promise of weight loss or of any particular result. Supplements can interact with prescription medications and are not appropriate for everyone. Talk to a doctor or pharmacist who knows your medical history before starting any supplement — particularly if you are pregnant or breastfeeding, take prescription medication, manage a chronic condition, or are already taking a GLP-1 medication.
Details about Summit THC gummies come from the manufacturer's own published materials as of the date below. Ingredients, amounts, pricing, and policies change frequently — check the current label and product page before purchasing.
Last reviewed: August 7, 2026
CB1 Has an Approved Drug on Each Side
Activate it and appetite goes up — that is dronabinol, an approved appetite stimulant. Block it and appetite goes down — that was rimonabant, an approved weight-loss drug. THC is on the first side.