Doctoral Student / Doctoral Student

ETH Zurich - February 22, 2026

Doctoral Student Position - Evaluating Novel Mineral Sources for Treatment of Micronutrient Deficiencies in Humans

100%, Zurich, fixed-term

The ETH Zurich Laboratory of Epigenetics, Nutrition and Metabolism and the Sustainable Food Processing Group in the Department of Health Science and Technology are collaborating on a strategic research initiative focused on Microalgae and Plant-Based Foods in Human Nutrition and Health. The Sustainable Food Processing Group emphasizes a systemic approach to food production, taking into account societal needs and their environmental, economic, and social impacts. Innovative raw materials are explored within urban farming and processing concepts to enable sustainable food supply solutions.

The Laboratory of Epigenetics, Nutrition and Metabolism seeks to unravel the intricate relationships between nutrition, metabolism, and the epigenome through advanced methodologies, including single-cell and next-generation sequencing, as well as human and murine in vivo and in vitro studies. We are currently seeking a talented and highly motivated doctoral student to investigate novel mineral sources for treating micronutrient deficiencies in humans, with a focus on the absorption and bioavailability of these mineral sources in clinical trials.

Project Background

Micronutrient deficiency is a pressing global health challenge, largely due to inadequate dietary intake. It is estimated that over 5 billion people do not consume sufficient amounts of at least one micronutrient. Mineral deficiencies—particularly of iron, calcium, zinc, and magnesium—are widespread, especially in low- and middle-income countries, impacting women and children the most due to low-mineral diets.

Dietary minerals are typically sourced from a variety of foods, including animal products such as meat, dairy, and seafood, as well as plant-based foods like legumes, cereals, nuts, seeds, and leafy vegetables. However, the reliance on traditional animal-based foods raises concerns about environmental sustainability, ethical issues, and dietary preferences. While plant-based foods are generally more sustainable, they often contain lower levels of minerals and may have reduced bioaccessibility and bioavailability due to absorption inhibitors such as phytates and polyphenols. This necessitates the exploration of alternative, more sustainable, and mineral-rich food sources that can effectively address global mineral deficiencies.

Novel mineral sources, such as microalgae, are promising candidates for supplying essential minerals, including iron, calcium, zinc, and magnesium, alongside proteins, lipids, vitamins, and other bioactive compounds. However, it is crucial to assess the bioavailability of these minerals through in vivo clinical trials before large-scale applications in human populations.

Job Description

As a doctoral student, you will be responsible for conducting research aimed at exploring the absorption and bioavailability of novel mineral sources through clinical trials.

  • Summarize existing knowledge on minerals from novel sources for human nutrition and health.
  • Design intervention meals (including sensory tests) for clinical trials.
  • Assess the bioaccessibility of minerals in vitro.
  • Evaluate mineral bioavailability in vitro.
  • Conduct clinical trials related to human nutrition enriched with novel mineral sources.
  • Support teaching activities and co-supervise MSc and BSc students.
  • Collaborate with academic and industry partners, acting at the interface between science and technology.
  • Contribute to grant submissions and related activities with the Singapore-ETH Centre, Bezos Centre for Sustainable Protein at NUS, ETH World Food System Center (WFSC), and ETH for Development (ETH4D) competence center.

Profile

  • MSc in Nutrition and Health, Clinical Trials, Food Science and Technology (with strong nutrition or clinical experience), or related fields.
  • A strong passion for nutrition and health, sustainability, and novel food sources.
  • Expertise and interest in human/clinical-related work (GCP certification is required, but can be obtained after starting).
  • Experience and interest in nutrition assessment using in vivo models.
  • Ability to work in a dynamic, international, and interdisciplinary team.
  • Capable of collaborating with various teams and national and international partners.
  • Interest in working independently and supervising students.
  • Strong verbal and written communication skills in English.
  • Scientific curiosity and motivation to conduct rigorous experimental work.

Workplace

You will be part of a leading research team focused on Microalgae and Plant-Based Foods in Human Nutrition and Health, supported by both ETH groups. You will have access to state-of-the-art research equipment in an excellent working environment. ETH Zurich and the team offer outstanding training opportunities for career development and strong networks in sustainable food and nutrition. Research assistants will be available to support the project as needed.

Living expenses will be covered with a fixed-rate standard monthly doctoral student salary according to ETH guidelines.

We Value Diversity and Sustainability

ETH Zurich is committed to fostering an inclusive culture that promotes equality of opportunity, values diversity, and nurtures a respectful working and learning environment for all staff and students. Learn more about our commitment to equal opportunities and diversity on our website. Sustainability is a core value for us; we are dedicated to advancing towards a climate-neutral future.

Curious? So Are We

Apply online using the form below. Only applications matching the job profile will be considered. The position is open to international students, and applications via email or postal services will not be accepted. The search will continue until a suitable candidate is identified, with no set application deadline. The latest starting date is anticipated to be September 1, 2026—earlier starts are encouraged.

For more information about our research, please visit the Sustainable Food Processing website and the Laboratory of Nutrition and Metabolic Epigenetics. For further inquiries regarding the position, please contact Dr. Fengzheng Gao at fengzheng.gao@hest.ethz.ch, including Prof. Ferdinand von Meyenn (ferdinand.vonmeyenn@hest.ethz.ch) and Prof. Alexander Mathys (alexander.mathys@hest.ethz.ch) in the CC line.

About ETH Zurich

ETH Zurich is one of the world's leading universities specializing in science and technology, renowned for its rigorous education, groundbreaking research, and direct transfer of knowledge to society. With over 30,000 individuals from more than 120 countries, our university fosters independent thinking and a culture of excellence. Located in the heart of Europe, we are dedicated to developing solutions for the global challenges of today and tomorrow.

Location : Zürich
Country : Switzerland

Application Form

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