Category Archives: Diet

FIBER – the “digestive” macronutriment

“Dietary fiber (in British English fibre) or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes.[1] Dietary fibers are diverse in chemical composition, and can be grouped generally by their solubility, viscosity, and fermentability, which affect how fibers are processed in the body.[2] Dietary fiber has two […]

FATS – the energy storage macronutrient

“Fats are one of the three main macronutrient groups in human diet, along with carbohydrates and proteins,[1][3] and the main components of common food products like milk, butter, tallow, lard, salt pork, and cooking oils. They are a major and dense source of food energy for many animals and play important structural and metabolic functions, […]

CARBOHYDRATES – the rapid energy macronutrient

“The term is most common in biochemistry, where it is a synonym of saccharide (from Ancient Greek σάκχαρον (sákkharon) ‘sugar'[1]), a group that includes sugars, starch, and cellulose. The saccharides are divided into four chemical groups: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides and disaccharides, the smallest (lower molecular weight) carbohydrates, are commonly referred to as […]

PROTEIN – the body building macronutrient

“Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another. Proteins differ from one another primarily […]

LEPTIN – the appetite hormone

“Leptin (from Greek λεπτός leptos, “thin” or “light” or “small”) is a hormone predominantly made by adipose cells and its primary role is likely to regulate long-term energy balance.[6] As one of the major signals of energy status, leptin levels influence appetite, satiety, and motivated behaviors oriented towards the maintenance of energy reserves (e.g., feeding, […]

GHRELIN – the hunger hormone

” Ghrelin (/ˈɡrɛlɪn/; or lenomorelin, INN) is a hormone produced by enteroendocrine cells of the gastrointestinal tract, especially the stomach,[5][6] and is often called a “hunger hormone” because it increases the drive to eat.[6] Blood levels of ghrelin are highest before meals when hungry, returning to lower levels after mealtimes.[6][7] Ghrelin may help prepare for […]

BMI – Body Mass Index

“Body mass index (BMI) is a value derived from the mass (weight) and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is expressed in units of kg/m2, resulting from mass in kilograms and height in metres.”* It’s purpose is basically used to determine if we are underweight <20, normal weight between 20 and 25 or overweight above […]