GHM L1 Flashcards
Macronutriens
- Fats
- Carbohydrates
- Proteins
Fat
Major constituent of membrane phospholipids
ESSENTIAL Precursors of eicosanoids
Eicosanoids
- Thromboxane
- Prostaglandins
- Prostacyclin
Carbs
ESSENTIAL Plant origin. Except lactose + small amount of glycogen
Essential
Something we cannot make ourselves
Amino Acids
Synthesising:
New proteins
Thyroid hormones
Neurotransmitters
Catecholamines
DIAGRAMS OF MACRONUTRIENTS
RECOGNISE THEM!!!!
What happens if we get too little fat in diet?
Fatty acids are essential
Failure in growth
Reproductive problems
What happens if we get too little carbs in diet?
Carbs not needed.
But, too little carbs leads to protein sparring effect.
This leads to acidosis. This where carbohydrate starvation leads to glycolysis to stop and lypolysis to start. This is to provide energy.
This leads to ketoacids being produced. This increases irrersible damage + acidity
Hypoglycemia - drop in blood sugar levels, fatigue
Muscle wasting - amino acids used up for energy
What happens if we get too little protein in diet?
Kwashiorkor
- Very severe permananet intellectual disability
- Severe oedema
- Dermatitis
- Liver enlargement
Marusmus
<60% of weight for age
Deficiency in calorie intake
Kwashiorkor
60-80% of weight for age
Oedema
Protein deficiecny
Marasmus Kwashiorkor
<60% of weight for age
Oedema
Underweight
60-80% of weight for age
No oedema
Malnutrition
Failure to thrive
Types of malnutrition
- Marasmus
- Kwashiorkor
- Marasmus Kwashiorkor
What happens if we get too much fat in diet?
CVD - Cardiovascular Disease
What happens if we get too much carbs in diet?
Diabetes Mellitus
Glucose Toxicity
What happens if we get too much protein in diet?
- Some cancers
- Calcium stones in Urinary Tract
-Osteoperosis
-Kidney disease
How can too much of all macronutrients cause obesity?
DIAGRAM L1
All macronutrients are eventually broken down into AcetylCoA
Body Fat %
New Born: 14% (male/female)
10 year old: male: 13% female: 19%
ADULT essential fat: male: 5% female: 13%
ADULY normal weight male: 15% female: 28%
Obese ADULT male: 25+ % female: 32+%