Blood values and your metabolism
Your blood values make your metabolism visible. Sugar, fats and thyroid all help decide how easily you lose weight. Look up a value below. Each one gives the normal range and what a deviation means.
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Eosinophils
Eosinophils are white blood cells involved in allergic reactions and the defence against parasites. As part of your complete blood count, they can offer clues about allergies or asthma.
Erythrocytes (RBC)
An erythrocyte (red blood cell) count measures the number of red blood cells in your blood.
Estradiol (E2)
According to the NVKC, the female fat distribution is one of the characteristics that oestradiol, the main female sex hormone, is responsible for.
FSH (Follicle Stimulating Hormone)
FSH (Follicle Stimulating Hormone) plays a role in reproductive health and may help provide insight into hormonal changes associated with ageing.
Ferritin
Your ferritin value tells you how much iron you have in store, because ferritin is the protein that stores iron, but during a weight-loss programme it measures something else too.
Folate (Folic Acid)
Folate measures vitamin B9, a nutrient that may become harder to absorb as we age.
Free T3 (Triiodothyronine)
Free T3 is considered the most active thyroid hormone and may be particularly relevant as we age.
Free T4 (Thyroxine)
Free T4 is the main thyroid hormone and may become increasingly important to monitor with age.
Free Testosterone
Free testosterone is the biologically active form of testosterone that is not bound to proteins.
GGT (Gamma-Glutamyl Transferase)
GGT monitoring is particularly important for older adults, as age-related changes and the use of multiple medications can affect liver and bile duct function.
Glucose (Fasting)
Fasting glucose regulation can change with age. Regular monitoring supports diabetes prevention and metabolic stability for healthy ageing.
HDL Cholesterol
Your HDL cholesterol tells you how much cholesterol sits in the particles that bring cholesterol back to your liver, and in a weight-loss programme it is the value you most easily misread.
HOMA-IR
HOMA-IR assesses insulin resistance, which becomes increasingly relevant with age.
HbA1c (Glycated Hemoglobin)
HbA1c monitoring is increasingly important with age as diabetes risk rises. Regular testing supports early intervention and helps maintain metabolic health in later years.
Hematocrit
Your hematocrit value says what percentage of your blood consists of red blood cells, the cells that carry oxygen around your body; the rest is fluid.
Hemoglobin
Hemoglobin monitoring is particularly valuable for seniors, as age-related changes can affect red blood cell production and iron metabolism.
Holotranscobalamin
Holotranscobalamin is the earliest indicator of B12 depletion and may be particularly relevant for older adults.
Homocysteine
Homocysteine levels may rise with age and are associated with cardiovascular and cognitive health. Regular monitoring supports heart and brain protection in later years.
Insulin (Fasting)
Insulin sensitivity naturally decreases with age. Monitoring fasting insulin supports early intervention and metabolic health maintenance in later years.
Intrinsic Factor Antibodies
Intrinsic Factor Antibodies tests for autoimmune-related B12 malabsorption. Pernicious anaemia becomes more common with age, making this test particularly relevant for older adults with unexplained or persistent B12 deficiency.
Iodine
Iodine supports thyroid function and cognitive health, both of which can change with age. Regular monitoring helps maintain metabolic balance and mental clarity.
Iron (Serum)
Your body gets iron from food: your gut takes it up, the transport protein transferrin carries it through your blood, and most of it ends up in haemoglobin, the protein that carries oxygen through your blood.
LDH (Lactate Dehydrogenase)
LDH, in full lactate dehydrogenase, is an enzyme, a protein that speeds up a chemical conversion; in your cells that is the conversion of lactate.
LDL Cholesterol
According to the NVKC, cholesterol is carried through the blood in fat droplets of cholesterol, triglycerides and proteins, and LDL is the droplet that brings cholesterol to the tissues and organs.