Marjolein Visser is a Dutch professor of healthy ageing at Vrije Universiteit Amsterdam (Department of Health Sciences).
She studies how diet, body composition and physical activity relate to muscle mass, strength and independence in later life.
She works with data from the Longitudinal Aging Study Amsterdam (LASA), which has followed middle-aged and older Dutch people for many years.
Protein is a key theme in her work: many older people eat too little protein, especially at breakfast and lunch, and low intake is linked to greater loss of mobility.
She coordinated the European PROMISS project on protein and malnutrition in community-dwelling older adults, and is a valued source for media and policymakers.
For longevity, her work offers concrete, realistic nutrition advice to maintain muscle strength and independence.
Takeaway: spread your protein across the day, including a protein-rich breakfast and lunch, for example with dairy, eggs or legumes.