Found this paper on lactation care for troons. Not very long, but amusing nonetheless. Paper
here.
In recent years, we have seen growing awareness by the media, professional health organizations, and academics when it comes to the reproductive and lactation health needs of transgender and non-binary (TGNB) people. Thomas Beatie made headlines in 2007 as the world’s “first” pregnant man (Roberts, 2016). The American College of Obstetricians and Gynecologists (2011) published a position statement encouraging its members to educate themselves about transgender health.
One of these members is famously Mama Doctor Jones AKA Birthing Person Jones AKA Don't Call me Danielle, who refuses to use any female-centric language in her videos.
In 2016, researchers published the first qualitative study about the experiences of
transmasculine people with lactation (MacDonald et. al., 2016). The first peer reviewed case study of a transgender woman who successfully breastfed her infant was published in 2018 (Reisman & Goldstein, 201

.
This case study has been discussed before, and all it was was watery pus that had to be supplemented with formula. T levels were also high despite all that estrogen. 'Transmasculine' people are just pooners who didn't get the titty chop yet.
Given these recent firsts, one could be forgiven for assuming that TGNB lactation is an exotic frontier. Yet, approaching our health needs from this perspective is inherently “othering” and is also inaccurate. Cultures from around the world and across time have been documented to include people with diverse gender identities, and who participate in varied activities to do with work, spirituality, and family life (Blackwood, 1984; Graham, 2012). For instance, in precolonial times, at least 33 Native American tribes recognized cross-gender roles that confounded western binary notions of gender and sex (Blackwood, 1984).
They also had words for those people. Most of these were effeminate gay men who were not allowed to be openly gay, so they put them in a role that was considered 'appropriate' for them. Natives knew full well what sex was.
Bugis in South Sulawesi, Indonesia, conceptualize a range of gender identities as they relate to sex, spirituality, behavior, sense of self, and more (Graham, 2012). It is likely that the history of TGNB lactation is as ancient as the human species itself, yet academic research in this field is only beginning to emerge.
It's ancient, but it's never before been recorded by anyone; only recently has there been any research or attempts to get troons to lactate. Curious.
On misgendering and discrimination:
Recent research highlights the intensity of discrimination experienced by TGNB people. In the United States, the National Transgender Discrimination Survey (N = 6450) found 19% of respondents had been refused medical care due to being TGNB, 50% needed to educate their providers about transgender health care, and 28% had postponed medical care due to fear of discrimination (Grant, Mottet & Tanis, 2011). Similarly, Bauer, Scheim, Deutsch, and Massarella (2014) found that 21% of TGNB people (N = 433)
avoided using emergency department services due to fear of discrimination. Misgendering is particularly stressful for many TGNB people (McLemore, 2013; 201

. Misgendering means using a different gendered pronoun, name, or descriptor from that which the patient uses. Examples include calling a patient “Mother” when they go by “Dad” or using the term “breast” when the patient refers to their “chest”.
Misgendering negatively affects mental health, self-esteem, and social identity (McLemore, 2013; 201

.
AKA they're scared of being accurately sexed. Like that transman they treated as a man until 'he' gave birth to a stillborn baby.
One aspect unique to transgender women may be the use of an androgen-blocking medication (e.g., spironolactone). Spironolactone is found to be excreted in milk at 0.02% of the maternal daily dose and is believed to be clinically insignificant for the infant (Reisman & Goldstein, 201

. Reported results regarding milk volume are reasonably successful, with
some moderate supplementation required (Reisman & Goldstein, 2018, p. 25).
'Moderate' aka most of the milk had to be given through formula because the troon didn't produce enough. Shocker.
Transgender men sometimes choose to become pregnant and give birth, and they may produce milk and feed their babies from their bodies (Ellis, Wojnar & Pettinato, 2014; MacDonald et al., 2016; Hoffkling, Obedin-Maliver & Sevelius, 2017). A variety of terms are used in the transmasculine community, including breastfeeding, chestfeeding, nursing, and feeding. Some transgender men become parents with prior male chest-contouring surgery and/or having taken testosterone, and others give birth having had no transition-related medical interventions at the time of pregnancy (Ellis et al., 2014; MacDonald et al., 2016; Hoffkling et al., 2017). They may or may not disclose their gender identity to HCPs (MacDonald et al., 2016).
They want to be men so badly until threat of suicide, and yet do the most female thing imaginable. Under no circumstances can you call them mothers, bigots.
For transmasculine individuals that have had prior chest surgery and choose to chestfeed their infants, establishing an adequate latch and milk supply are the primary challenges. Different surgical techniques and individual patient characteristics result in varying degrees of chest tissue regrowth during pregnancy. When the chest is flatter and the skin more taut, latching may be difficult, in which case the patient could be encouraged to try molding the tissue with their hand, or using a nipple shield if helpful.
I can't imagine how you can breastfeed without breasts, but whatever.
Use of a supplemental nursing aid and galactagogues can be discussed in the case of inadequate milk supply (MacDonald et al., 2016). While breastfeeding might be a gender-affirming activity for transgender women, for transgender men nursing an infant may bring up feelings of gender dysphoria.
Ah, there it is. It's validating for males, horrifying for females, because it reminds them of what they are. Makes you wonder why the pooner even bothered to get pregnant if the dysphoria was so bad.
Gender dysphoria is generally defined as a sense of distress caused by incongruity between a person’s felt gender and their physicality, or the way others view their gender (American Psychiatric Association, 2013, 302.85 F64.0 F64.1). However, experiences of gender dysphoria as well as its causes can be extremely varied. Some transmasculine patients reported that chestfeeding was a source of intense gender dysphoria, while others noted that nursing their infant was the only time they did not experience chest-related gender dysphoria (MacDonald et al., 2016).
Breastfeeding for transwomen, chestfeeding for women. Only males can keep the word.
And despite breastfeeding, pooners still wanna use their binders:
For some transgender men, nursing or pumping in private and having appropriate masculine, nursing-friendly clothes may be helpful in managing symptoms of gender dysphoria. Some may wish to bind their chest to reduce gender dysphoria and should be counseled to take precautions to prevent mastitis or reduced milk supply.
On testosterone during breastfeeding:
Limited research about testosterone taken by the
nursing parent has reported that it is unlikely to adversely affect the infant given its low oral bioavailability (MacDonald et al., 2016; Hoffkling et al., 2017; Drugs and Lactation Database, 201

. Testosterone lowers serum prolactin levels and may partially suppress lactation, especially if taken before the milk supply is well-established (Drugs and Lactation Database, 201

.
Doesn't matter, the fetus was already exposed to it in utero.
Not much else of note in the paper, albeit there's a bit on misgendering and how that made a pooner named 'Joe' upset. Discussion of CBT inbound. Notes on how healthcare providers should 'do better'.

One final note:
Aversives (e.g., misgendering by a HCP) may affect a transgender patient’s success in breastfeeding, chestfeeding, and lactation. Doulougeri, Panagopoulou, and Montgomery (2013) found that self-reported stress in mothers [sic] had a negative influence on milk volume, frequency of feeding, and timing and duration of the first feeding after birth. Since misgendering and discrimination have been widely reported by TGNB patients to be highly stressful events, they may negatively affect milk production and feeding, in addition to making the patient less likely to seek medical care in the future. Doulougeri et al. (2013) provided an example of how TGNB people are typically excluded from consideration in lactation research. Their study is written about “mothers,” yet does not mention having asked participants to report their gender identity during data collection.
If you get triggered at being called a mother, DO NOT GET FUCKING PREGNANT. That's literally all you have to do, you stupid fucking pooner.