Briefly explain the following terms giving examples:

i) PAL

ii) Ergogenic aids

iii) Balanced die

iv) Probiotics

v) Functional foods

vi) Essential fatty acids

vii) Digestibility coefficient

viii) Dietary fibre

ix) Polysaccharides

x) Physical fitness

i) PAL The physical activity level (PAL) is a way to express a person's daily physical activity as a number, and is used to estimate a person's total energy expenditure. In combination with the basal metabolic rate, it can be used to compute the amount of food energy a person needs to consume in order to maintain a particular lifestyle.

The physical activity level are defined for a non-pregnant, non-lactating adult as that person's total energy expenditure (TEE) in a 24-hour period, divided by his or her basal metabolic rate (BMR)

The physical activity level can also be estimated based on a list of the (physical) activities a person performs from day to day. Each activity is connected to a number, the physical activity ratio. The physical activity level is then the time-weighted average of the physical activity ratios.

ii) Ergogenic aids  are mechanical, nutritional, pharmacological, physiological and psychological tools that athletes use to increase energy, performance and recovery. Commonly used ergogenic aids include dried adrenal ________ ____ ________ _______ ______ _____ ______ ____ ______.
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