fish oil
TRANSCRIPT
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SEMESTER 1, 2012/13FISH OILS
PKK3200 PRINSIP PEMAKANAN
MANUSIA
LECTURER:PROF. MADYA DR. NORHAIZAN BINTI MOHD.ESA
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PREPARED BY:
YOO PHEI YING 161536
AHZAN NURA HAMIMI
161951
SITI NOR SUHAIDA 162175
TIUN YEEN NIEN 162954
GAN TSAE LIAN 163194
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OUTLINE
WHAT IS FISH OILS? THE WAYS TO OBTAIN IT HOW DOES IT WORK? WHY IS IT IMPORTANT IN HUMAN
DIETS? BENEFITS OF FISH OILS DEFICIENCY OF FISH OILS EXCESSIVE INTAKE OF FISH OILS DIETARY RECOMMENDATION CONCLUSION
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WHAT IS FISH OIL?
A form of fatty acid that is derived from the tissues of oily fish.
Contains the omega-3 fatty acids (n-3), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)
EPA and DHA are a very long derivatives of n-3 which is one of polyunsaturated fatty acid (PUFA)
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EXAMPLES OF FISH RICH IN OMEGA-3
Example : mackerel, tuna, salmon, sturgeon, mullet, bluefish, anchovy, sardines, herring, trout, and menhaden.
They provide about 1 gram of omega-3 fatty acids in about 3.5 ounces of fish.
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EXAMPLES OF FISH RICH IN OMEGA-3
Salmon
Tuna
Herri
ng
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EXAMPLES OF FISH RICH IN OMEGA-3
Anchovies
Bluefish
Mackerel
Mullet
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THE WAYS TO OBTAIN FISH OILS
EATING
FISH
TAKING SUPPLEMENT
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EATING FISH
Fish oils are obtained from i. lean fish, e.g. cod, in which reserve oils
are stored as triacylglycerols in the liversii. fatty fish, e.g. mackerel, in which the oils
are stored in the flesh.Eating broiled or baked fish - reduce the
risk of heart diseaseEating fried fish or fish sandwiches -
cancels out the benefits of fish oil and increase heart disease risk
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FISH OIL SUPPLEMENTS
Made from fish skins and livers. Often contain small amounts of
vitamin E to prevent spoilage. They might also be combined with calcium, iron, or vitamins A, B1, B2, B3, C, or D.
Usually made from mackerel, herring, tuna, halibut, salmon, cod liver, whale blubber, or seal blubber.
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EXAMPLES OF FISH OIL SUPPLEMENTS
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HOW DOES IT WORK?
Omega-3 fatty acids reduce pain and swelling. This may explain why fish oil is likely effective for psoriasis and dry eyes. These fatty acids also prevent the blood from clotting easily. This might make fish oil helpful for some heart conditions.
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WHY ARE FISH OILS IMPORTANT IN HUMAN DIETS?
Specific fatty acids found in fish oils are prevalent in specialised organs (such as the brain, eyes).
Mammals have a very limited ability to synthesise these fatty acids, so we need to obtain them from our diet
The fatty acids found in fish oils are NOT the same as those in vegetable oils
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BENEFITS OF FISH OIL
Heart – Helps reduce the risk of arrhythmias and sudden death by a heart attack.
Brain – Fatty acids in fish oil help to build the membranes of cells in the brain. DHA improves concentration and memory.
Cholesterol and Triglycerides – Lowers triglycerides to help balance cholesterol.
Joints and Arthritis - Better joint function from reduced inflammation and a reduction in pain.
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BENEFITS OF FISH OIL
Skin and Beauty – Improves the health and appearance of your skin, helps keep your nails strong, and makes your hair healthy and shiny.
Immune system and Cancer – Proven to be beneficial for the body’s immune function, lowering risk of breast and prostate cancer.
Vision – Improves focus, colour, perception, and clarity of vision.
Digestive System – Improves intestinal health and reduces inflammation.
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BENEFITS OF FISH OIL
Allergies – Omega-3 fatty acid intake by mothers during pregnancy may protect babies against the development of allergies. It may also help people with existing allergies.
Diabetes – Fish oil enhances insulin secretion from beta cells in the pancreas, regulating blood sugar levels. DHA plays a protective role in diabetic neuropathy in all forms of diabetes.
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DEFICIENCY OF FISH OIL
Building of the cell membranes in the brain and controlling of blood clotting by preventing platelets from clumping together may become inhibited.
Cause poor memory, mood swings and depression.
Symptoms - fatigue, poor circulation, heart problems, and it contributes to skin conditions such as dandruff and eczema, plain old dry skin.
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EXCESSIVE INTAKE OF FISH OIL Thin our blood, inhibiting the blood
coagulation process our body needs to stop bleeding after an injury. Excessively thin blood increases risk of internal bleeding - disrupt the normal flow of oxygen throughout your body, or might even lead to bleeding in our brain.
Large amounts fish oil capsules - affect our hair - large amount of vitamin A - toxicity - damage skin and scalp, leading to flaking and tissue breakdown that can impede proper hair growth.
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DIETARY RECOMMENDATIONS
Eating fish (particularly fatty fish) at least two times a week. (American Heart Association )
People who already have cardiovascular disease: higher amounts are recommended
Pregnant/breastfeeding women/ development during early infancy and childhood: at least 8 and up to 12 ounces (2 – 3 servings) of a variety of seafood per week
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CONCLUSION
Fish oil isn't necessarily going to help you build muscle at an accelerated pace directly, but indirectly it will help improve the quality of your workouts and more importantly, really enhance your overall health and disease resistance.
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Thank you for your
attention…