Category Archives: Medicine

“Bonny-Clabber Physicians”: Eating Clean in the Seventeenth Century

Michael Walkden

NPG D31284; Thomas Tryon by Robert White, after Unknown artist, line engraving, 1703. Credit: WikiCommons.
NPG D31284; Thomas Tryon by Robert White, after Unknown artist, line engraving, 1703. Credit: WikiCommons.

The concept of ‘clean eating’ is nothing new, but ideas about what constitutes ‘clean’ or ‘dirty’ food have varied within and across cultures. In the later seventeenth century, the popular health writer Thomas Tryon promoted a “radically clean” vegetarian diet as a route to longevity and clarity of mind. However, Tryon’s meat-free menu was rather different from the quinoa bowls and kale smoothies of modern-day clean-eaters. His 1694 Pocket-companion contains the following recipe (easy to follow, but emphatically not to be tried at home):

Boniclabber is made by letting your Milk stand till it sowers, which will be in Twenty-fours hours, if the weather be very hot. [1]

Tryon’s ‘bonny clabber’ – an Irish country dish that was later enjoyed by immigrants to the USA – would have great difficulty in meeting twenty-first century Western standards of food hygiene. Writing well before the advent of pasteurization, Tryon would likely have used raw milk straight from the cow, which would have been rich in bacteria that could be both beneficial and harmful to the human body. If it was left at just the right temperature and for the appropriate length of time, the finished product would be a thick, fermented milk, similar to yoghurt or kefir.

Perhaps unsurprisingly, not all of Tryon’s contemporaries shared his enthusiasm. Gideon Harvey wrote that “Bonny-Clabber Physicians” routinely endangered their patients by their over-use of milk products, which he viewed as highly corruptible and prone to curdling in the belly. [2] Harvey had the weight of medical tradition on his side. Humoural physicians since Hippocrates frequently expressed mistrust or even fear over the coagulability of milk, with Galen writing that it “turns to wind in the stomachs of most people, and there are very few who avoid this.” [3]

Clabbered milk. Credit: WikiCommons.
Clabbered milk. Credit: WikiCommons.

Tryon attempted to forestall this sort of criticism in his own writing. Since he believed that digestion operated by a process of fermentation, it logically followed that fermented foods should be easier on the stomach, having already undergone the initial stages of this process. While he was prepared to admit that it “may not be so agreeable to the Pallat at first”, Tryon assured his readers that “a little Custom will make it familiar and pleasant.” [4]

Attitudes towards the healthiness of clabber were also closely tied up with racial stereotypes about the Irish, whose perceived gluttony and barbarism were ridiculed by many English Protestants. In 1652 the parliamentarian Samuel Sheppard wrote of an anonymous royalist that “his Intellect is as foule, as an Irish Firkin of Bonny Clabber”, suggesting that many viewed it as a disgusting or dangerous substance. [5] By contrast, in a 1635 letter from Dublin, the English royalist and Lord Deputy of Ireland Thomas Wentworth described clabber as “the bravest freshest Drink you ever tasted.” [6]

The example of bonny clabber raises some interesting questions about the relationship between ideology and diet. As Carla Cevasco has flagged up elsewhere on this blog, the categories that shape affective responses to food can be highly variable, ranging from the genetic makeup of a population to its social norms. Disgust that feels instinctive or biologically hard-wired might just as easily be the product of a specific cultural moment. As the debate over clean eating continues to rage, we need to pay closer attention to the ideological fault-lines upon which we construct our ideas about food and hygiene.

[1] Thomas Tryon, A pocket-companion, containing things necessary to be known by all that values their health and happiness (London: Printed for George Conyers, 1693), 6.

[2] Gideon Harvey, The art of curing diseases by expectation (London: Printed for James Partridge, 1689), 38.

[3] Galen, Galen on Food and Diet, ed. Mark Grant (London and New York: Routledge, 2000), 165. See also Ken Albala, “Milk: Nutritious and Dangerous,” in Milk: Beyond the Dairy: Proceedings of the Oxford Symposium on Food and Cookery, 1999, (Devon, UK: Prospect Books, 2000), 19-30.

[4] Tryon, Pocket-companion, 7.

[5] Samuel Sheppard, The vveepers: or, the bed of snakes broken (London: Printed for Thomas Bucknell, 1652), 6.

[6] Thomas Wentworth, The Earl of Strafforde’s Letters and Dispatches, Volume 1, ed. William Knowler (London: Printed for the editor, by William Bowyer, 1739), 441.

Michael Walkden is currently completing his doctoral thesis in History at the University of York, UK. His research explores understandings of the relationship between emotions and digestion in early modern English medicine. He is particularly interested in the intersection of diet, health and spirituality in the seventeenth century.

Storytelling and Practical Skills in Medical Recipes

By Ying Zhang

What constituted a medical recipe in late imperial China? Literati physicians often touted the efficacy of a medical formula by contending that it conforms to traditional order of the emperor and his officials. They might also praise the suitability of the drug combination for treating that individual body’s ills. (See discussion on drug knowledge in China elsewhere on this blog). While texts by literati physicians have attracted most scholarly attention, they might not contain some of the most widely circulated and used medical recipes in everyday settings. People in late imperial China had access to a wide range of vernacular texts to find a recipe for self-treatment. During this period, we see the circulation of many practice-oriented recipes through vernacular literature as well as personal networks. These sources included daily-use encyclopedias, almanacs, meritorious books, and fiction. These recipes functioned as a practical instruction for domestic use and a textual form that articulated practical health care knowledge through literary narratives. They highlighted the techniques of making medicine as an essential part of a medical recipe that non-expert could follow in their own homes.

The first page of the “Recipe from a bare-foot immortal for pills made with fish maw to help insemination.” Image credit: Berlin State Library.

One fascinating example which I’d like to bring to you today is the “Recipe from a bare-foot immortal for pills made with fish maw to help insemination,” which was collected and recorded in A Convenient Survey of Medical Recipes (Yifang bianlan), a manuscript written by a person with the sobriquet Gaoyangshi in the nineteenth century. This recipe presents a story at its beginning, which starts with the encounter in a certain famous mountain between an immortal and a sixty-one-year old men with the surname Zhou from Yunnan who has one wife and nine concubines but has been unable to conceive a child:

…[Zhou] talked about his family [with the immortal], saying that he does not have any children and asking for a good recipe. Moved by his sincerity, the immortal gave him a recipe. The medicine [made according to the recipe] has a character that is clearing but not cooling, warming but not heating. If men take it, [it] could strengthen the muscles and bones, invigorate the vitality, replenish the marrow, nourish the yin, and reinforce the primordial. If women take it, it could regulate the menstrual period, replenish the Blood, prevent miscarriage, regulate the qi, benefit the yin, and ease fertilization. Zhou bowed and received it [meaning the recipe] (bai er shou zhi), and refined and mixed [the medicine] according to the recipe (yi fang xiuhe)…

Following the story, the recipe lists the individual drugs required and, after each drug, it provides instructions on how to process it. For the chuan fuzi (Aconitum carmichalii Debx, Chinese aconite) from Sichuan, for instance, one needs to select the following:

Two pieces with each weighing four liang and five qian, cut off their sprouts and cut each of them into four pieces, soak them with raw gancao (Glycyrrhiza uralensis, Licorice) water for seven days, change the water every morning, and then cover them with half jin of wet flour, heat until cooked over a slow charcoal fire, cut them into pieces, and then heat to dry.

At the end of its drug list, the recipe summarizes, “to cook and make the listed drugs according to the [described] methods” (yi shang zhu yao ru fa paozhi). The word “paozhi” here refers to processing the drugs according to the methods listed under each drug. The recipe then continues with instructions on how to grind the drugs into powders and mix the powders into pills, and also explains the way to take the medicine.

It is interesting to note that the story at the beginning of the recipe uses the word “yi fang xiuhe,” a more general term referring to all of the work from processing individual drugs to mixing them together into pills. It suggests that the recipe worked well exactly because Mr. Zhou made the pills following all the technical details required by the recipe as a way of self-cultivation and demonstrated his piety in the making process. It was Mr. Zhou, not any physician or pharmacy, made the pills. The narrative episodes not only validated the efficacy by stating the mythical origin of the recipe, but also affirmed the efficacy by stating that this Mr. Zhou then had seven sons after taking the pills and lived to ninety-seven years old. They thereby presented the production of medicine as a personal endeavor that anyone could pursue. While the recipe exhibited a world of practical skills to handle medical substances and required utensils, the story advertised these specialized skills of drug processing as everyday household knowledge. The story also functioned to attract collectors through literary embellishment. This was especially desirable when recipes traveled out of medical contexts and became collectable artifacts in the context of literati sociability, connoisseurship, and moral practice. Recipes garnished with literary creation and moral teaching in this context usually encouraged its collectors to distribute it to more people to accumulate merit. Thus, when we exam the circulation and use of recipes out of medical context, we could find storytelling an essential part of medical recipes intended for household use.

Ying Zhang received her Ph.D. degree from Johns Hopkins University in 2017. Her dissertation titled “Household Healing: Rituals, Recipes, and Morals in Late Imperial China” investigates China’s rich tradition of household healing practices and reinterprets these practices in relation to religion, gender roles, and morality from the seventeenth to the early twentieth century. Drawing on a wide range of texts people used in their daily healing practices and texts about household healing, this research contributes to a deeper understanding of the heterogeneous health-related practices beyond the domain of learned medicine. It demonstrates the various ways in which the home served as a central site of healing technology in late imperial China. Through the study of the circulation of health related texts, it also sheds new light on the circulation of information in the context of literati sociability, philanthropic activities, and religious commitment in late imperial China. She can be reached at

Water to Drink: Fit Only for Invalids and Chickens?

By David Gentilcore 

Jean-Baptiste Labat, Voyages du P. Labat de l’ordre des FF. Precheurs, en Espagne et en Italie (Paris: Jean-Baptiste Delespine, 1730) © Bibliothèque nationale de France

When the French Dominican Jean-Baptiste Labat was captured by the Spanish in the 1690s, and offered water to drink aboard ship, he informed the chaplain that ‘only invalids and chickens drink water in my country’ (Labat 1722). Perhaps this comes as no surprise. If people in past times drank plenty of wine and beer, historians generally assume, this was because the water was risky and potentially unhealthy, perhaps even fatal. But that is to project our own modern conception of water – for example, as a disease-carrying agent – into the pre-modern past. Labat’s aversion to water as a beverage, as expressed in this anecdote (and as the teller of the stories he always gets the best lines!), was due not so much to concerns about its poor quality as to biases inherited from classical culture. As a drink of the lower classes (and animals), water was often described in unflattering terms, especially when compared to what was considered the beverage par excellence – wine (Squatriti 1998). And indeed, in his account, wine is exactly what Labat goes on to request.

However, if we look at actual practices, water returns to the fore. Not only does Labat then proceed, very laboriously, to temper his wine with water, as was the usual way of drinking wine in much of pre-modern Europe; his very successful published mixtures of travelogue, memoir and natural history positively abound with references to water. Every place he visits, Labat describes the nature of the fresh-water supply, and the varied techniques used to harvest, store and access it. In Labat’s eyes a town without its own reliable supply, like Cadiz, is one that would not be able to survive a siege. He is impressed by the technology of water, in particular aqueducts, but even more by water as display. This is evident in his detailed and enthusiastic descriptions of the ornamental fountains present in many Italian towns and cities. And he gets so carried away by his instructions on how to construct a rainwater cistern, the fruit of his own experience overseeing the establishment of a Dominican monastery in the French Antilles, that he repeats them in at least two separate works (Labat 1728; Labat 1730).


The Tivoli waterfall, as Père Labat might have seen it (not to be confused with Niagara Falls).

Even limiting ourselves to his account of Spain and Italy (Labat 1730: in eight four-hundred-page volumes!), Labat’s knowledge and curiosity regarding water and its uses is amply evident. How the clean, clear and pure water of Tivoli’s waterfall, which he compares to Niagara Falls no less, becomes full of silt and mud when it rains, making it unhealthy, or how the bouillantes (boiling) waters of a spring on the outskirts of Viterbo remind him of the spring of that name in Guadeloupe (French Antilles). Siena’s ‘magnificent’ fountain in the main square (the Fonte Gaia) provides a ‘prodigious quantity of very good water’, whilst the numerous fountains of Rome are both delightful and necessary, since the water from the River Tiber ‘is good for nothing’. He notes the high number of itinerant water-sellers in Naples, despite the public fountains on every street, and how in Spain they are registered and taxed, like all other shopkeepers and pedlars. He praises the ‘light’ waters of Bologna and the ‘admirable’ waters of Naples, in tune with the eighteenth-century Hippocratic revival of the importance of ‘airs, waters and places’ in the pursuit of health. He describes various healing springs and the different diseases they are good for, whilst noting that local doctors were rarely much in favour, since ‘nothing disconcerts doctors more than natural remedies’. He remarks on the priest so afraid of water that he wouldn’t even wash his hands, or the doctor who quickly realised that the best remedy for disease was fresh water to drink, rest, a change of air and, most of all, plenty of patience.

We know from a wide range of other sources that communities went to great lengths to procure clean water, from elaborate public works, like aqueducts, conduits and fountains, to the construction of public and domestic rainwater cisterns, to the everyday presence of water-sellers in larger towns. If I gave drinking water rather short shrift in my recent study of food, diet and health (Gentilcore 2016), it at least means that I can now devote a research project entirely to the ‘water cultures’ of early modern Europe and the Mediterranean. It is already evident from work in progress that doctors went from being circumspect in their advice regarding drinking water, during the Renaissance, to great enthusiasts for table water as a ‘universal cure’, effective both in preventing and treating disease, during the eighteenth century.

Whatever his own personal drinking preferences might have been, the widely travelled Père Labat turns out to be a connoisseur of waters. Although his enthusiasm occasionally gets the better of him – the water-sellers of Naples were actually a necessity in a city perennially short of fresh water – Labat provides a generally reliable and entertaining introduction to the importance of water and its provision throughout the early modern world.

David Gentilcore is Professor of Early Modern History at the University of Leicester. His research interests lie in the medical, dietary, social and cultural history of early- and late-modern Italy. He is the author of seven books and his most recent monograph is Food and Health in Early Modern Europe. Diet, Medicine and Society, 1450-1800 (Bloomsbury, 2015). Our blog readers interested in the history of food might also be interested in David’s books on the potato and the tomato in Italy.


Jean-Baptiste Labat, Nouveau voyage aux Isles de l’Amérique (Paris: Pierre-François Giffart, 1722), 6 vols. A heavily abridged translation by John Eaden was published as The memoirs of Père Labat, 1693-1705 (London: Frank Cass, 1970 [first ed. 1931])

Jean-Baptiste Labat, Nouvelle relation de l’Afrique occidentale (Paris: Guillaume Cavelier: 1728), 5 vols.

Jean-Baptiste Labat, Voyages du P. Labat de l’ordre des FF. Precheurs, en Espagne et en Italie (Paris: Jean-Baptiste Delespine, 1730), 8 vols.

Paolo Squatriti, Water and society in early medieval Italy (Cambridge: Cambridge University Press, 1998)

David Gentilcore, Food and health in early modern Europe (London: Bloomsbury, 2016)


Mary Napier’s “Snaile Milke”: Transmission, Materiality, and Medical Practice

By Alexandra Kennedy

For a postgraduate project on material texts, I spent several chilly autumn weeks bundled in a scarf and coat in the Bodleian Library’s Special Collections, pouring over a small, leather-bound manuscript of medical receipts by Mary Napier (née Vyner)—a seventeenth-century English doctor’s wife.  After an initial period of transcription, I felt compelled to understand Mary’s lived experience as best I could.  How could the materiality of Mary’s manuscript—in conjunction with its contents—provide clues about her life, and, more specifically, her medical practice? When viewed in contrast to her husband’s writings (also housed in the Ashmole Collection), MS Ashmole 1390 establishes Mary’s engaged involvement in recipe collection and recording. Mary’s active role in her practice becomes especially clear when we look at her recipe for “the snaile milke”—a type of therapy which Jennifer Sherman Roberts has discussed here on The Recipes Project

Snail and fungi. Pietro Andrea Mattioli, Commentarii secundo aucti…
Credit: Wellcome Library, London. Wellcome Images

Medicine brought together Sir Richard Napier and his first wife, Anne Tyringham—one of his patients, according to Richard’s casebook (MS Ashmole 177, fols. 2r-3r). After Anne’s death and during his courtship with Mary Vyner, Richard provided several therapeutic recipes of soothing baths and “distilled milk” for his soon-to-be second wife, in which Mary writes she “found great good” (MS Ashmole 1390, fol. 26r). The exchange of medical knowledge continued on throughout the couple’s marriage, evidenced in their recipes for snail milk in the diplomatic transcriptions below. This shared recipe highlights compositional similarities and differences between husband and wife’s written record of the cure:

Sir Richard Napier’s recipe for “The Snayle Milk” in MS Ashmole 1447 fol. 28r Mary Napier’s recipe for “the snaile milke” in MS Ashmole 1390, fol. 63r
The Snayle Milke

Take nine shell snayles with their
shells on & then make a skillet of
water boyle & when it boyles put
in the snayles with their shelles
& let them boyle up, then take them
out & picke them out of their
shells & so put them in a pint of
milke ready boyleinge on the
fire against the snayles be
taken out, & so let it boyle till
it be a quarter consumed.

the snaile milke

take 9 shell snailes with theyr
shells on & make a skellet of
water boile & when it boiles
put in the snailes with theyr
shells on & let them boile
up & then take them out &
picke them out of the shells
& put these into a pint of
milke ready boileing on the
fire against the snailes
bee taken out & so let them
boile till it bee a quarter part
\wasted/ boiled away.

Despite the recipes’ close linguistic proximity, Mary’s spelling varies from her husband’s. Even her word choice differs in a particular moment—“so let it boyle till it be a quarter consumed” becomes, in Mary’s words, “so let them boile till it bee a quarter part \wasted/ boiled away”—the word “wasted” being an interlinear addition to the text.  Mary paints a clearer, one could argue more exacting, picture of what happens to her ingredients as they undergo chemical transformation with applied heat, when compared to her husband’s elegant but less immediate “consumed.”  The orthographic and linguistic peculiarities of Mary’s recipe indicate that she was not a passive receptacle for her husband’s cures and medical knowledge.  Indeed, she could have been the originator of the recipe. Or, perhaps, the couple shared a printed source for this cure. Whatever the recipe’s provenance, Mary owned and adapted the recipe as it made sense to her personally during manufacture.  A splotch on the right-hand corner of the page further attests to Mary’s use of the manuscript as a tool at her side while preparing recipes. We can envision Mary in her stillroom, concocting “snaile milke” with her trusty manuscript at her side, and penning in a line about how her materials transform when boiled, so she’ll know what to look for next time.

Viewing Mary’s “snaile milke,” especially within the context of the Napier family papers, allows us to make contact with Mary’s lived experience of practicing medicine. And if we can achieve this contact in Mary’s case, how many more experiences of healing remain to be discovered within the pages of other recipe books, and among domestic papers in the archival setting? And how can recovering texts of women like Mary—members of families prominent in medical or scientific fields—tells us about their experiences not just as daughters and wives, but as healing practitioners and authors themselves?

Works Cited
Oxford, Bodleian Library, MS Ashmole 177
Oxford, Bodleian Library, MS Ashmole 1390
Oxford, Bodleian Library, MS Ashmole 1447

Works Consulted
DiMeo, Michelle. “Authorship and medical networks: reading attributions in early modern medical recipe books.” Reading and Writing Recipe Books, 1550-1800, edited by DiMeo and Sara Pennell, Manchester University Press, 2013, pp. 25-48
Ezell, Margaret J. M. “Domestic papers: manuscript culture and early modern women’s life writing.” Genre and Women’s Life-Writing in Early Modern England, edited by Julie A. Eckerle and Michelle M. Dowd, Ashgate, 2007, pp. 33-48
Field, Catherine. “‘Many hands hands’: writing the self in early modern women’s recipe books.” Genre and Women’s Life-Writing in Early Modern England, edited by Julie A. Eckerle and Michelle M. Dowd, Ashgate, 2007, pp. 49-63

Alexandra Kennedy graduated with a Master’s in English (1550-1700) from the University of Oxford in 2016. She earned her Bachelor’s in English at Middlebury College in 2014. She enjoys researching seventeenth-century women’s writing across lines of genre, from drama to biography to medicine. Currently a schoolteacher and freelance writer, she composes book reviews and blogs about the early modern world at You can find her there, or on Twitter @earlymodallie.