MAG 30 Killing Floor deals with the subject of animals being slaughtered, this comes up in other episodes too

The writer has stated that no pets that the audience meet will die in the series.

pigs, cattle, lots of abattoir scenes + evil spiders and a bunch of evil bugs

There are no overly gruesome descriptions, but in MAG 30: Killing Floor, the setting is a slaughterhouse so there are frank discussions of animal death and abuse.

In MAG 133: Dead Horse, a horse is mentioned to pass away. Though, there is no audio or other means of describing the passing, and it is moved past soon after.

It is relayed second-hand that a character's motivation was the death of her childhood cat approx. 50 years ago, however Writer Jonny Sims has said that this is neither canon nor non-canon, as he doesn't know if the character was joking or not. He has also said that no harm will come to any pets the audience meets, such as Major Tom (MAG 16) or The Admiral.

LOTS of bugs. Worms are a central part of almost all of season 1, and various bugs (and spiders) remain relevant through the rest of the show.

Spiders are a recurring element of many episodes

Ep 149, Concrete jungle, a short scene in the statement describes a pit viper made of stone attacked a minor character.

A recurring theme in the series, especially in season 4.

Trevor "the Tramp" Herbert gives multiple statements, first in Episode 10 (Vampire Killer), and discusses his heroin addiction, including details about the consequences of infections from repeated use of needles. Some minor characters occasionally imply or admit to drug use in their statements.

A few statements reference the statement-giver abusing alcohol to cope with supernatural related trauma, but overall it only comes up a few times

In episode 164, a woman shaves her skin off in order to get rid of a parasitic fungus.

The main character trys to cut off his finger, complete with knife thunking noises, and whimpering/crying

pretty much every episode has some form of psychological torture, but there are several physical torture scenes too

In episode 169, characters are repeatedly burned alive onscreen/on tape. It is the main theme of the episode. Additionally, many episodes feature characters burning alive, including MAG 37, MAG 55, MAG 89, MAG 107, MAG 139, and MAG 145.

Featured to various extents in episodes 19, 20, 58, 72, 115, and 156.

lots of episodes have descriptions of violence against other people but the one that sticks out to me for this particular category is mag 80, where a character is beaten to death with a pipe on tape

Random teeth collections are a recurring theme in a lot of episodes.

A recent statement-giver (ep. 155) has a near-death experience following a seizure.

The episodes MAG 154 and MAG 155 discuss this at length. [SPOILERS] In MAG 155, a minor character is planning to blind themselves and does so off-screen.

The main character does spend a minute or so trying to cut off his finger, but doesn't succeed as it keeps reattaching/healing. There are squishy sounds alongside this.

Quite a few times, and one of the minor antagonists deals mainly in the, let's just say "adjustment" of bones.

In episode 169, a character (non-recurring) witnesses their parents die as they scream for her to help them. Very upsetting.

One of the main characters is kidnapped 3 times over the course of S2, once for over a month, and during this time is also threatened with death, bodily harm and tortured via induced vertigo.

A newborn was killed in the most recent episode (Ep. 155, "Cost of Living"). The episode does not linger on this.

MAG 150 features a main character who cheats on his significant other.

In episode 146, an adult describes having one of his toys stolen as a 6 year old. In episode 179, a parent is forced to burn their child's toys but the child is not present.

Creepy clown horror is a major theme of the first three seasons.

One character mentions slipping in the shower and seriously hitting her head in episode 155. It is not lingered on.

At some point in season 2, the main character stalks his co-workers as his paranoia gets the better of his common sense. In season 3, there is an episode where the main character is being followed. It's also worth noting that being watched and, to an extension, being able to do nothing about it are in statements, as well as the plot.

There are occasionally screams of pain and shouts mid argument that can be very surprising.

A side plot involves a paranormal investigator who actively seeks hauntings, and a few episodes include entities that either are or could be ghosts.

Episodes 19 and 20 "Confession" and "Desecrated Host" are completely centered around demonic possession. There are other similar experiences frequently throughout the series.

Several instances of audio gore occur, including a character getting their throat slit (non-lethally), trying unsuccessfully to cut their finger off, and getting their rib removed through supernatural body modification.

one minor character spits at another after being incapacitated

Though vomiting is mentioned often in the statements (the stories that are told through the characters), no vomiting is ever heard directly nor does any character vomit "on-screen."

The story of MAG 19 is framed as an interview with a man who has been incarcerated at a mental institution for his supposed crimes.

A character stays in a hospital for ~6 months while he is in a coma

Syringes only come up once, and minorly. The episode MAG 62 First Edition has a scene where a character watches a doctor murder a patient with a syringe of poison. The episode is a bit important as it's the backstory of a recurring character, but the scene is short and can be skipped. The scene is from timestamp 12:05 to 13:03 Also, in one episode (MAG 45 Blood Bag), mosquitoes attack people, and that might not count for everyone but it upset me so I might as well mention it.

Recurring (deceased) character has a brain tumor

There is an entity that causes fear by killing and then imitating a person. The entity is capable of perfectly convincing everyone they are that person, but purposefully lets at least one or two see through the ruse so that they are tormented by how their memories do not match what seems to be reality. The entity also affects photographs, contributing to the fear of insanity and wrongness

Ep 90 deals pretty heavily with people who hate their bodies and are exercising obsessively to change them, as well as turning that theme up in body-horror contexts. A few other episodes dip into the same theme for a few lines

The characters in 156, the starvation world, are potentially triggering to those with eating disorders.

In MAG 116 and MAG 118, while not exactly anxiety attacks, two main characters have breakdowns over information being forced into their heads by one of the antagonists.

A recurring theme in the series

- in statements, many occurrences of suicide or things that look like it, sometimes very violently, sometimes mundane, sometimes through supernatural means. Characters are often supernaturally manipulated into putting themselves in danger, or driven to suicide after trauma. At least one case of death by hanging (MAG008), 2 self-immolations (MAG037 and MAG055), a few jumpings (MAG046, MAG075), some self-stabbings. S4 adds: 124 (a supernatural being jumps out of a high place (probably surviving it) and a man's murder is covered up in-universe as being a suicide), 125 (a supernaturally-frenzied man impales himself on own weapon); neither involve mental illness or suicide ideation. - (S3 SPOILER) A main character more or less deliberately sacrifices themself while in a bad place psychologically, and being explicitly referred to as having a death wish. (Episode: MAG119)

A woman peels her skin off at one point in s5

No strobe effects, although various types of high-pitched audio interference are common starting from season 2 onwards.

It's a podcast, so there are no visuals.

None is graphically described, but it does happen and is relayed second-hand.

I forget what episode it is, but when a minor character is being born, her mother is burned on a ceremonial fire while giving birth. It is not lingered on, and there are no sound effects of the actual event. It is told through a former cult member telling their story

And Jonny Sims has specifically said he avoids this theme in his writing.

MAG 6 Squirm two characters have sex but its not described in detail

Yes. One recurring ("monstrous") character is referred to by it/its pronouns by a main character even after she asks him to stop. A villain who had thus far exclusively been referred to by she/her pronouns and a feminine name is revealed to have been referred to by he/his pronouns and a masculine name in the past, and it's implied by a main character that this identity is her true inner self, and that her current one is false. Several inhuman characters are referred to by it/its pronouns as dehumanization, including an extremely minor one who is trans.

in the sense that no one is safe"; the survival/death rate so far is pretty equal between LGBT and non-LGBT characters.

There is antisemitism and xenophobia expressed by characters in 163

Since this is a podcast, there are no concrete visuals of characters and, I don't believe any of the characters have specific races.

A character describes himself briefly as "not the smallest guy in the world". This is not self deprecating and only serves to better set the scene for fitting through a small space. It is not touched on again and he is not insulted for this fact.

In season 1, the main character dismisses characters who have issues with addiction or mental illnesses and berates them for it. This stops after the first season and it's learned he deals with some level of addiction + mental illness as well. In MAG 122: Zombie, while not directly stated to be about mental illness, the statement giver's attitude towards those he perceives as processing emotions incorrectly reads as such.

no, but episode 171 has a villain being briefly homophobic, by asking a gay couple if they're boyfriends in a condescending tone. however it's quickly brushed off and moved on from

There is antisemitism including blood libel expressed by a character in episode 163.

Most statements don't end well, and writer Jonny Sims has consistently alluded to the series as a whole being a tragedy. It's still ongoing though.

Mary Keay I would say counts as a domestic abuser towards her spouse

It technically doesn't happen, but in the episode MAG 70 Book of the Dead a character reads a disturbing prediction that he will die when he is hit by a car and trapped. It doesn't actually happen and the actual crash is only briefly described

[SPOILERS] MAG 144 (arguably) deals with the immediate aftermath of a nuclear explosion, but this is not the focus of the episode.

Two major characters' backstories involve having antagonistic relationships with emotionally abusive parents. Some statement givers mention having bad relations with their parents but in most cases it is an offhand comment, and not overtly detailed.

Multiple episodes deal with choking or being suffocated

Agnes Montague, an avatar of the Desolation, dies by hanging (it is a suicide, though it's performed by her cult at her request). It's recounted second-hand, without too detail, but it is referenced multiple times over the course of the series.

More commonly, people just fall endlessly as a form of torture...

Episode 129 describes a drowning in detail

There are multiple characters using guns through the series, so there are the sounds of gunfire and people being shot in, I think, all seasons.

This is a horror audio drama; depending on how intense your reaction to this is, it may not be a good show for you. That said, it is all audio, so no visual gore.

There's a car accident in episode 70, "Book of the Dead," as a possible nasty death for a statement giver. It's a quick mention, but does linger on how the speaker would die (canon-typical violence) and might be triggering for some. Section is 10:22 to 11:00 for anyone who needs to skip.

Multiple episodes deal with a character being buried alive in various forms