- Anvilicious: Even if you like the film, it's hard to argue against it being a little heavy-handed.
- Captain Obvious Aesop: Fast food is bad for your health. No shit, Spurlock. The film admits that everyone already knows that, but attempts to show that it's worse than you might think. The doctor at the beginning says that he expects Spurlock to gain some weight, but after a few weeks is begging him to stop the experiment for his own safety. The experiment as a whole just glues together a larger message about making smart food choices.
- Do Not Do This Cool Thing: Watching this film can give some viewers a serious craving for your favorite McDonald's menu item, though other parts of the film, such as Spurlock vomiting a Super-Sized meal out of his car door, might spoil your appetite whoever you are.
- Harsher in Hindsight:
- The segment with Jared Fogle speaking to a crowd of families about weight loss, and one particular mother and daughter praising him for being such an inspiration, is especially hard to take today considering his subsequent arrest and incarceration for possessing child pornography and having sexual relations with minors.
- While the film has been praised for tarnishing the public image of fast food chains, many have pointed how the backlash, however, affects people working in the fast food industry in that they are places where many minorities and lower-income classes seek work as well as the fact that eating healthy is actually rather expensive and few places offer eating choices (most supermarkets don't cater to those seeking a better diet). The film doesn't address this issue, nor does it bother to give a solution to an established system in some communities.
- Hilarious in Hindsight: One of the Happy Meal toys shown in the beginning is from Kim Possible. One of the episodes of the final season is titled "Grande Size Me", dealing with Ron vowing to eat nothing but junk food to disprove the guidelines set by his health class. At first he gains weight with no drawbacks, but this is due to accidental exposure to a mutagenic substance. After he is cured, he gives a parody Aesop of steering clear and being responsible around vats of mutagen.
- Nausea Fuel: Especially when Spurlock vomited his first Super-sized meal.
- Never Live It Down: The film became this to McDonalds, forever making them the iconic image of unhealthy and fattening fast food. Even if you haven't seen the film, you've probably at least heard about the sequence of Spurlock struggling to finish his Supersized meal and vomiting it in the parking lot.
- Overshadowed by Controversy: The film got this around the time the Weinstein Effect emerged in 2017 due to Morgan Spurlock confessing to sexual misconduct, which put it in the spotlight again for completely different reasons. This also resulted in a sequel to the film being dropped from distribution. To a lesser extent, there's also controversy over the veracity of the experiment.
- "Seinfeld" Is Unfunny: Back when this film came out, the very premise was the big draw of the film and brought the issue of healthy eating and fast food chains to mainstream news outlets; it was even shown in some schools as part of the education. These days, however, it is a common fact that eating at fast food restaurants for long periods of time is unhealthy and people are less likely to have a problem with the film's intended message but actually have trouble with Spurlock's background history of sexual misconduct and the inclusion of Jared Fogle, who has become an infamous pedophile in the years after the film's premiere.
- Some Anvils Need to Be Dropped: While there's no real denying that this is a bit of a Captain Obvious Aesop (excessive fast food is harmful to your health? Really?), a case can be made for this; the movie does spend a bit of time pointing out the reasons why this is the case, some of which are not what you'd expect. Obesity is also a very serious public health issue in the United States.
- Squick: Numerous examples.
- Explicit footage of gastric bypass surgery... set to the tune of the "Blue Danube Waltz".
- When Morgan ate his first Super Sized McDonald's combo and promptly vomited.
- The huge hair he found in the parfait.
YMMV / Super Size Me