State what is meant by the term
balanced diet for humans
aprropiate amount to
each food group for
the lifestyle.
List the principal sources of, and describe the
dietary importance of:
Carbohydrates: Source
of short-term energy
release.E.g. pasta rice
Protein: Growth and repair of
cells. E.g. meat and
fish(enzymes, made up of
amino acids held together by
peptide bonds)
Minerals:
Keeps you
healthy. E.g.
calcium helps
your bones get
stronger
Water:
Keeps you
hydrated
Fats: shorts term
energy,keeps you
warm
Vitamins:Keep you
healthy.Eg victims D
helps prevent
Rickets in children.
Fibre: helps you
with digestion to
avid
constipation.
Explain how age, gender and activity
affect the dietary needs of humans
including during pregnancy and whilst
breastfeeding
Age: Babys need more
carbohydrate,vitamins,minerals(calcium)
compared to adults
Gender: Woman have periods so they
need more iron to replace the red blood
cells lost during their menstrual cycle.
Male has higher metabolic(rate of
which chemical reaction happen in the
body) rate, more carbohydrate.
Activity: Physical work needs more food
types like carbohydrates for short-term
energy release. They need to drink more
water to replace the water lost/keep
hydrated.They need proteins fro growth
and repair of muscles.
Pregnancy: Women gain mass,
therefore more energy, more food like
vitamins for the healthy development
of the fetus. Minerals(folic acid,
calcium and iron)The Iron used to
make more blood cells to carry around
oxygen.
Describe the effects of malnutrition in relation to
starvation, constipation, coronary heart disease,
obesity and scurvy
Starvation: You can
die, starve to death.
Constipation: One can
die from digesting
problems .
Coronary Heart disease: When
your arteries get blocked and
you can die. It happens mostly
to the people who are obese.
Obesity
Scurvy : one does not get
enough citrus acid,one
can die from suffering
from this disease
Explain the causes and effects of vitamin D and iron
deficiencies
Causes: Do not eat enough food with iron
and don not go out in the sun which is a
great source of vitamin D
Effects: Rickets, Knock
knee,bow-shaped legs
and weak bones
Explain the causes and effects of protein
energy malnutrition, e.g. kwashiorkor
and marasmus
Kwashiorkor: Gives you a
big belly as a symptom
and if it continues it can
lead to death.