Encyclopedia of Nutritional Psychology

The Biopsychosocial Model is an interdisciplinary framework that explains health and behavior through the interaction of biological, psychological, and social factors.

A biopsychosocial–spiritual perspective is used within social work as defined by the NASW and recognizes the importance of whole-person care, taking into account a client’s physical or medical condition; emotional…

Bipolar disorder involves recurrent episodes of mania, hypomania, and often depression that affect mood, energy, activity, and functioning. Nutritional psychology examines how diet, nutrients, inflammation, metabolic health, and eating behaviors may relate to bipolar disorder as complementary areas of study.

Bliss point is the concentration of a palatability-driving ingredient — typically sugar, salt, or fat — at which a food produces peak sensory pleasure; beyond that point, liking declines. Coined in sensory psychophysics, it is now widely used in food science and connects to food-reward and ultra-processed-food research

The blood-brain barrier is a protective layer of cells and blood vessels surrounding the brain and spinal cord. It acts like a filter that prevents harmful substances, such as toxins…

Blue Zones are geographic regions identified by researchers Dan Buettner, Gianni Pes, and Michel Poulain as having unusually high concentrations of individuals who live to age 100 or beyond in…

Body image is the multidimensional psychological experience of one's own body, encompassing perceptions, thoughts, feelings, beliefs, and behaviors related to physical appearance and embodiment. It is commonly organized into perceptual,…

Body Mass Index (BMI) is a numerical measure of body size calculated as an individual's weight in kilograms divided by the square of their height in meters (kg/m²). It is…

The bogus taste test is a laboratory method for unobtrusively measuring food intake. Participants believe they are rating foods for taste while researchers discreetly weigh or record how much they consume.

Brain-derived neurotrophic factor (BDNF) is a protein involved in the growth, maturation, and survival of nerve cells in the brain. It plays a vital role in learning and memory and…