During the second half of the first millennium BC, hundreds of hillforts dotted the central Italian Apennines. Often interpreted as ‘proto-towns’, the authors present results of investigations at Monte Santa Croce-Cognolo that challenge this idea. Previous studies identified a small area (<1ha) of occupation and suggested that habitation extended across the whole 18ha site. Combining geophysical and pedestrian survey with remotely sensed data, and local ethnographic accounts, the authors detect little evidence for permanent habitation and instead argue for activities connected with animal husbandry. The results challenge urban-centric interpretations by demonstrating the coexistence of monumental but uninhabited hillforts and urban sites—usually seen across the Mediterranean and Europe.

Micronutrient deficiencies continue to be a global concern, with the most common deficiencies being vitamin A, iron, zinc and B vitamins (folate and B12). Addressing this requires strategies that are scalable and equitable such that they reach all members of a population irrespective of socioeconomic status and geography. Fortification and biofortification offer potential large-scale solutions, however each have strengths and limitations depending on the context, particularly the cultural and political factors that may create barriers or opportunities for effectiveness. Planning how to target scarce resources for maximum impact requires an in-depth knowledge and understanding of local food systems and market dynamics, alongside strong government policy and legislative support. A food fortification programme was launched in Pakistan in 2016, supported by UK Aid and designed to address the high prevalence of vitamin A, iron and zinc deficiency, particularly in women and children. In the same year, the first zinc biofortified variety of wheat, Zincol-2016, was released in Pakistan, supported and developed through the HarvestPlus programme in collaboration with the Pakistan National Agriculture Research Centre. This review explores the challenges faced by fortification and biofortification, initiated independently, (but around the same time) in Pakistan.

In the Andean highlands, hilltop fortifications known as pukaras are common. Dating predominantly to the Late Intermediate Period (AD 1000–1450), pukaras are important to archaeological characterisations of a political landscape shaped by conflict but the distribution of these key sites is not well understood. Here, the authors employ systematic satellite imagery survey to provide a contiguous picture of pukara distribution on an inter-regional scale covering 151 103km2 in the south-central highlands of Peru. They highlight the effectiveness of such survey at identifying pukaras and capturing regional variability in size and residential occupation, and the results demonstrate that satellite surveys of high-visibility sites can tackle research questions at larger scales of analysis than have previously been possible.

Archaeological narratives have traditionally associated the rise of social and political ‘complexity’ with the emergence of agricultural societies. However, this framework neglects the innovations of the hunter-gatherer populations occupying the Siberian taiga 8000 years ago, including the construction of some of the oldest-known fortified sites in the world. Here, the authors present results from the fortified site of Amnya in western Siberia, reporting new radiocarbon dates as the basis for a re-evaluation of the chronology and settlement organisation. Assessed within the context of the changing social and environmental landscape of the taiga, Amnya and similar fortified sites can be understood as one facet of a broader adaptive strategy.

Defensive infrastructure in the hinterland of the late Roman province of Germania Secunda hinged upon the widespread use of burgi. These defended settlements played a role in transforming villa estates, depopulated zones, and the expansion of the military footprint. They are common in the late third- and fourth-century landscape, spread throughout the loess belt of Belgium, Dutch Limburg, and the Rhineland, yet little has been done to quantify them. This article is dedicated to the chronology, morphology, and functional aspects of burgi, primarily in the loess plain of the Lower Rhine region. The author assembles data from a wide variety of burgi, to characterize them and reach meaningful conclusions about what they represent within the landscape, in the hope that it will act as a pilot project for future work in the field.

Roman remains were discovered by chance at Saf-Saf Lakhdara in the Chott Chergui (Algeria). This article attempts to demonstrate that these ruins are part of a Roman fortification in the south of Caesarian Mauretania, far from the Severan limes, the course of which has been confirmed by numerous archaeologists. A historical-comparative study has been carried out to confirm that the ruins of Saf-Saf Lakhdar are those of a castellum. The corpus of graphic and photographic records and the ‘Khnag ‘Azzir’ inscription, combined with theoretical sources on Roman defensive architecture, confirmed that the fortifications at Saf-Saf Lakhdar were part of a castellum. The ‘Khnag ‘Azzir’ inscription revealed three main facts: it is dedicated to deities to commemorate the victory over the Berber tribes of the Saharan Atlas; it mentions Caius Octavius Pudens, who was procurator during the reign of the emperor Septimius Severus; and it mentions the conflicts between Rome and the Bavarians, a tribe from the ancient Maghreb. We urgently need to protect the site and carry out excavations in the hope of finding pottery or other objects that could shed light on and support this discovery.

The mountain fortress of Rabana-Merquly was a major regional centre of the Parthian period (first century BC) in the Zagros Mountains of Iraqi Kurdistan. The iconography of two rock-reliefs that show an unnamed ruler suggests an association with the vassal kingdom of Adiabene. The exceptional preservation of the fortress's stone walls, undamaged by later agriculture in this highland location, provides an almost complete example of a large, fortified site with two main intramural settlements. Through its ability to control the surrounding landscape, Rabana-Merquly highlights the role of client states on the peripheries of the Parthian and Roman Empires and illuminates the practicalities of territorial control by state authorities in hinterland regions.

The objective of the present study was to evaluate the contribution of voluntary fortified foods and supplements to reducing micronutrient shortfalls in the UK population. A secondary analysis of the UK National Diet and Nutrition Survey was conducted (2012/13–2013/14, N 2546, 1·5–95 years). Micronutrient intakes were derived from food consumption intake data and food composition data and calculated as the proportion below or above the Dietary Reference Values for males and females of different age groups, for those on a base diet only, users of fortified foods but no supplements and users of fortified foods and supplements. Of the population consuming a base diet only, 21–45 % and 5–29 % fell below the Estimated Average Requirement (EAR) for minerals and vitamins, respectively. About 3–13 % fewer consumers of fortified foods fell below the EAR for vitamins and minerals. Supplements barely reduced the prevalence of intakes below the EAR. Among supplement non-users and users, 99 and 96 % failed to meet the reference intakes for vitamin D. More women than men were at risk of inadequacies of micronutrient intakes. The prevalence of inadequacies declined with increasing age. Voluntary fortified foods but not supplements made a meaningful contribution to intakes of vitamin and minerals, without risk of unacceptably high intakes. These insights may help the UK to define approaches to address micronutrients of concern in vulnerable groups.

This article challenges the assumption that the early modern engineer acted as a reliable agent for colonial authorities. Far from acting as trusted mediators between colony and metropole, experts could exacerbate tensions. The English East India Company knew this, and avoided engineers throughout its early history. This article considers the interplay between authorities in London and their subordinates in Bombay. The company's directors saw engineers as untrustworthy agents who increased expenditure and disrupted the company's system of consultative governance. For much of its early modern history, the company's fortifications and built environments relied on a knowledge network of informal expertise. Examining these experts-in-context reveals how expertise was managed and built environments maintained in colonial settings. When the company did turn to experts in the mid-eighteenth century, it struggled to utilise and incorporate them. This demonstrates that in some colonial contexts experts could be profoundly disruptive.

Dietary recalls have been used previously to identify food sources of iodine in Australian schoolchildren. Dietary assessment can provide information on the relative contributions of individual food groups which can be related to a robust objective measure of daily intake (24-h urinary iodine excretion (UIE)). In Australia, the government has mandated the use of iodised salt in breadmaking to address iodine deficiency. The aim of this study was to determine the dietary intake and food sources of iodine to assess their contribution to iodine excretion (UIE) in a sample of Australian schoolchildren. In 2011–2013, UIE was assessed using a single 24-h urine sample and dietary intake was assessed using one 24-h dietary recall in a convenience sample of primary schoolchildren from schools in Victoria, Australia. Of the 454 children with a valid recall and urine sample, 55 % were male (average age 10·1 (1·3 (sd) years). Mean UIE and dietary iodine intake were 108 (sd 54) and 172 (sd 74) μg/d, respectively. Dietary assessment indicated that bread and milk were the main food sources of iodine, contributing 27 and 25 %, respectively, to dietary iodine. Milk but not bread intake was positively associated with UIE. Multiple regression (adjusted for school cluster, age and sex) indicated that for every 100 g increase in milk consumption, there was a 3 μg/d increase in UIE (β = 4·0 (se 0·9), P < 0·001). In conclusion, both bread and milk were important contributors to dietary iodine intake; however, consumption of bread was not associated with daily iodine excretion in this group of Australian schoolchildren.

The architectural connections between western Central Asia and China are not well understood. Recent investigations at the Haermodun site in central Xinjiang reveals new evidence of the influence of western Central Asia on the construction of fortifications in China during the early first millennium AD.