Science portal
DNA tests for weight loss: what the evidence shows and what it doesn’t
DNA tests for weight loss: what the evidence supports and what it does not The essentials at a glance A DNA test for weight loss is not a diagnostic procedure and does not predict weight-loss success. In 2022, the German...
How the Body Regulates Electrolytes: Kidneys, Hormones, and Numbers
How the body regulates electrolytes: kidneys, hormones, numbers The essentials at a glance Regulation takes place through the kidneys and is controlled by hormones. According to the MSD Manual, the kidneys filter electrolytes and water from the blood, return some...
Sodium–potassium ratio in the blood: what the number doesn’t show
Blood sodium-potassium ratio: what the number does not show The essentials at a glance A blood sodium-potassium ratio is not an established metric. None of the sources reviewed from the WHO, DGE, EFSA, IQWiG, RKI, or the U.S. National Academies...
Which weight-loss method is right for me? Eight approaches and the evidence behind them
Which weight-loss method is right for me? Eight approaches and the available evidence The essentials at a glance There is no method that is right for everyone. Concrete figures from German institutions are available for three of the eight approaches...
How many chromosomes do humans have: 46 and what follows from this
How many chromosomes do humans have: 46, and what that means The essentials at a glance A human cell normally contains 23 pairs of chromosomes, for a total of 46. This is how MedlinePlus Genetics of the U.S. National Library...
Macronutrients simply explained: What protein, fat, and carbohydrates really do
Macronutrients simply explained: What protein, fat, and carbohydrates really do The essentials at a glance Macronutrients are the three energy-providing components of food: protein, fat, and carbohydrates. They provide energy and building materials. For adults, the German Nutrition Society (DGE)...
DNA and genes: What’s the difference?
DNA and genes: What is the difference? The essentials at a glance The difference between DNA and genes is a difference in size: DNA is the molecule, while a gene is a single section of it. The storage medium and...
Gene Expression and Nutrition: What Your Meals Really Control
Discover the connection between gene expression and nutrition: How the food you eat turns genes on or off and thereby influences your metabolism.
Reference ranges in blood tests: Meaning and overview
Discover the reference ranges for blood tests and what they mean. Better understand your lab results with clear information and helpful...