T

Select a term to view the definition:
  • tannins

    Professional Description:

    The group of astringent and bitter compounds found in the seeds and skins of grapes which slow oxidation and promote aging.

  • Target audience

    Professional Description:

    Selected group of people who share similar needs or demographic characteristics such as age, income, sex, education or occupation and best represent the most likely potential recipients of an organization's message.

  • Telogen effluvium

    Professional Description:

    An increased transient shedding of normal club hairs by the premature development of telogen in anagen follicles.

  • Telogen Effluvium

    Professional Description:

    Impaired hair growth as a result of sudden weight loss or decreased protein intake.

  • Teratogenic

    Professional Description:

    Anything which produces nonheritable birth defects is said to be teratogenic.

  • Teratozoospermia

    Professional Description:

    A condition characterized by the presence of malformed spermatozoa in the semen.

  • Terry's nail

    Professional Description:

    A condition where the nails look opaque but the tip has a dark band.

  • tetrahydrocannabinol

    Professional Description:

    The psychoactive ingredient of the Cannabis plant family which occurs naturally in hemp plant resins.

  • Th1/Th2 balance

    Professional Description:

    The balance between Th1 and Th2 cytokines determines whether the response against a food will result in allergy

  • Th1/Th2 cytokines

    Professional Description:

    Th2 cytokines produced in the Th(T helper cell)2 response of T-cell lymphocytes to allergens, mediate the production of IgE, and thus the allergic response. Th1 cytokines mediate the protective response against, for example, infective micro-organisms.

  • Th2 cytokine predominance

    Professional Description:

    Allergy occurs when the Th2 response dominates.

  • The 5 A's model

    Professional Description:

    identifies five components (assess, advise, agree, assist, and arrange) that can be sequenced to help patients address unhealthy behaviours 'Assess' dietary practices and related risk factors, 'Advise' to change dietary practices, 'Agree' on individual diet change goals, 'Assist' to change dietary practices or address motivational barriers, and 'Arrange' regular follow-up and support or refer to more intensive behavioral nutritional counseling (e.g., medical nutrition therapy) if needed.

  • Theory of Planned Behaviour

    Professional Description:

    The theory of planned behavior is a theory about the link between attitudes and behavior. The theory of planned behavior holds that human action is guided by three kinds of considerations: Beliefs about the likely outcomes of the behavior and the evaluations of these outcomes (behavioral beliefs) / Beliefs about the normative expectations of others and motivation to comply with these expectations (normative beliefs) / Beliefs about the presence of factors that may facilitate or impede performance of the behavior and the perceived power of these factors (control beliefs).

  • Thermic effect of food

    Professional Description:

    The act of food consumption eliciting an increase in basal energy expenditure, determined primarily by the amount and composition of the foods consumed, mainly due to the metabolic costs incurred in handling and storing ingested nutrients

  • Thermoregulation

    Professional Description:

    The process by which humans regulate their body temperature within narrow limits.

  • Thinkers

    Professional Description:

    People who are skeptical and tend to make decisions based on logic and rules

  • Threshold Dose

    Professional Description:

    The dose that elicits allergic reactions in a given (small) proportion of susceptible patients

  • Thrombocytopenia

    Professional Description:

    Any disorder where there is an abnormally low amount of platelets.

  • Thyroglobulin

    Professional Description:

    Thyroglobulin is an iodine-containing protein of the thyroid gland that yields thyroxine and triiodothyronine on proteolysis.

  • Thyroid stimulating hormone

    Professional Description:

    Thyroid stimulating hormone (TSH) is a glycoprotein hormone produced by the anterior lobe of the hypophysis that stimulates the growth and function of the thyroid gland. TSH is also a diagnostic test to differentiate between primary and secondary hypothyroidism. Also called thyrotropin.

  • Thyroxine

    Professional Description:

    Thyroxine, also known as T4, is an iodine-containing hormone produced by the thyroid gland and also produced synthetically to treat hypothyroidism.

  • Time to exhaustion

    Professional Description:

    The time to fatigue at a fixed exercise intensity or pace also known as endurance capacity.

  • Time trial

    Professional Description:

    The time taken to complete a prescribed distance or work load (or the amount of distance covered or work completed in a set amount of time); also known as performance trial.

  • Tocopherols

    Professional Description:

    Tocopherols are characterized by a substituted, hydroxylated ring system (chromanol ring) with a long, saturated (phytyl) side chain. Of the four tocopherols - alpha, beta, gamma and delta, only the alpha-tocopherol has biologic activity and is classified as "vitamin E".

  • Tocotrienols

    Professional Description:

    Tocotrienols are similar in structure to tocopherols, except that the side chain is unsaturated. There are four tocotrienols - alpha, beta, gamma and delta - but none of these have significant biological activity, and are no longer classified as "vitamin E".

  • Tolerable Upper Intake Level

    Professional Description:

    The highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population. As intake increases above the UL, the potential risk of adverse effects increases.

  • Tool Sensitivity

    Professional Description:

    a tools ability to correctly identify individuals truly at nutritional risk, i.e., true positives

  • Tool Specificity

    Professional Description:

    measures the tool’s ability to identify correctly the persons who are at nutritional risk, i.e., true negatives

  • Total breastmilk

    Professional Description:

    no food or liquid other than breastmilk, not even water, is given to the infant from birth by the mother, health care provider, or family member/supporter during the past 7 days.

  • Total Cholesterol/HDL Ratio

    Professional Description:

    This ratio shows how high the HDL cholesterol is relative to the overall cholesterol level. The total cholesterol/HDL ratio is calculated by dividing the total cholesterol by the HDL cholesterol.

  • Total energy expenditure

    Professional Description:

    The sum of basal energy expenditure, the thermic effect of food, physical activity level and thermoregulation.

  • Total fibre

    Professional Description:

    sum of dietary fibre and functional fibre.

  • Total Glutathione (GSH + GSSG)

    Professional Description:

    Refers to the amount of both glutathione (GSH) and its oxidized form, glutathione disulfide (GSSG). Most cellular glutathione is present in the cytosol.

  • Total IgE level

    Professional Description:

    The quantity of IgE antibodies in a subject’s serum, without reference to any specific antigen to which the IgE may be formed

  • Total Screen Time

    Professional Description:

    Refers to all time spent in front of a "flickering screen" such as television, computer, VCR/DVD player, and video games.

  • total serum iron binding capacity

    Professional Description:

    This is a blood test that measures the total iron binding capacity (TIBC) as an indirect measure of transferrin.

  • Transcription

    Professional Description:

    The process by which the information stored in DNA is converted into messenger RNA.

  • Transferrin

    Professional Description:

    A beta globulin in blood plasma capable of combining with ferric ions and transporting iron in the body -- called also siderophilin

  • Translation

    Professional Description:

    The process by which the information in messenger RNA directs the synthesis of proteins; this process involves messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

  • Translation Initiation

    Professional Description:

    The start of the translation process in the cytoplasm where the mRNA attaches to ribosomal RNA (rRNA), and then one codon at a time systematically directs the assembly of amino acid molecules into a protein.

  • Triiodothyronine

    Professional Description:

    Triiodothyronine, also known as T3, is an iodine-containing thyroid hormone derived from thyroxine.

  • Type I allergies

    Professional Description:

    IgE-mediated hypersensitivity

  • Type I muscle fibre

    Professional Description:

    Skeletal muscle fibres that generate energy mainly through the aerobic energy transfer system and are selectively recruited in aerobic activities. It is also referred to as slow twitch or slow oxidative muscle fibres.

  • Type II muscle fibre

    Professional Description:

    Skeletal muscle fibres that produce energy rapidly and are active in powerful, quick actions. They are sub-classified as types IIa and IIb and are also referred to as fast twitch or fast glycolytic or fast-oxidative-glycolytic muscle fibres.