Unsaturated vs Saturated vs Trans Fats, Animation


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(USMLE subjects) Chemistry and biology of various kinds of fats. Why trans-fats are so unhealthy? This video is to be had for fast obtain licensing right here:
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Voice through Ashley Fleming
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All photographs/videos through Alila Medical Media are for info functions ONLY and are NOT supposed to interchange skilled clinical recommendation, analysis or remedy. Always search the recommendation of a certified healthcare supplier with any questions you will have relating to a clinical situation.
Contrary to in style trust, no longer all fat purpose middle illnesses and are unhealthy. In reality, maximum fat, in good enough quantities, are required for standard physically purposes, particularly mind purposes. There also are just right fat that if truth be told lower the hazards for cardiovascular illnesses.
A fats molecule consists of a glycerol head and 3 fatty acid tails, every of which is an extended hydrocarbon chain – a carbon skeleton sure to hydrogen atoms. When the entire carbons are totally sure to hydrogens, the fatty acid is alleged to be saturated – the entire bonds between carbon atoms are unmarried, and the hydrocarbon chain has a immediately form. A fats molecule made completely of saturated fatty acids is a saturated fats. Due to their immediately tails, saturated fat are compact and strong at room temperature.
On the opposite hand, when the hydrocarbon chain has fewer hydrogens, it’s stated to be unsaturated. Instead of binding to a most collection of hydrogens, some carbon atoms bind to one another by the use of a double bond. The presence of double bonds might bend the hydrocarbon chain, developing gaps between molecules, making them much less compact. As a outcome, unsaturated fat are in most cases liquid at room temperature. A fats molecule that accommodates just one double bond is a monounsaturated fats, whilst one who has more than one double bonds is polyunsaturated.
Dietary fat supply fatty acids for the synthesis of the cellular membrane – an important part of all animal cells. The gaps in unsaturated fatty acids supply membrane fluidity, facilitating membrane delivery and mobile signaling. While each sorts of fat are wanted for an optimum composition of the cellular membrane, an excessive amount of saturated fats, which is repeatedly the case in a standard American nutrition, would make the membrane inflexible and obstruct mobile responsiveness. Membrane fluidity is maximum necessary within the frightened device, the place neuronal reaction calls for extraordinarily speedy mobile communique. A definite ratio of unsaturated to saturated fatty acids could also be required for the formation of myelin – the insulating subject material that wraps round axons of neurons and hurries up the conduction {of electrical} alerts.
The frame is in a position to synthesizing the entire fatty acids it wishes, except polyunsaturated fatty acids omega-3 and omega-6, which will have to be received from the nutrition. These are referred to as crucial fatty acids.
In normal, unsaturated fat are more fit than saturated fat. Unsaturated fat lower the hazards for middle illness through decreasing the volume of unhealthy ldl cholesterol, LDL, and lengthening the great ldl cholesterol, HDL; whilst saturated fat building up each just right and unhealthy ldl cholesterol. But no longer all unsaturated fat are equivalent. In reality, a kind of unsaturated fats, referred to as trans-fat, is the unhealthiest of all!
A double bond can provide upward push to two imaginable configurations: cis and trans. Cis is when the two hydrogen atoms are at the identical aspect of the bond, whilst trans is when they’re at the reverse facets. A cis double bond bends the fatty acid molecule, whilst the quite extra symmetric trans configuration does no longer. A trans-fat is due to this fact equivalent in construction to a saturated fats. More importantly, trans-fats hardly ever happen in nature so the frame does no longer have the essential enzymes to damage them down. Diets wealthy in trans-fats building up the unhealthy ldl cholesterol LDL and cut back the great ldl cholesterol HDL, having essentially the most negative impact on blood vessels.
Trans-fats are discovered basically in partly hydrogenated oil merchandise, equivalent to margarine. Because unsaturated fat are much less solid and destroy quicker, Food producers upload hydrogens to lead them to extra saturated via a procedure referred to as partial hydrogenation. This procedure no longer most effective prolongs shelf-life of vegetable oils, but additionally turns them into strong, or semi-solid merchandise, which might be most well-liked through business bakers for his or her low value and wide variety of various textures. Unfortunately, partial hydrogenation additionally converts one of the cis double bonds into trans configuration, generating trans-fats.

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41 thoughts on “Unsaturated vs Saturated vs Trans Fats, Animation”

  1. excellent information, being involved in the edible oils industry, I feel that the information presented is very relevant and well explained thanks

  2. What's not been mentioned here is that the poor Liver takes on this heavy burden which is where we get 'Non-alcholic Fatty Liver Disease'…Seed Oil when oxidised are extremely damaging

  3. 🤲🏾🧪Best video on lipids hands down, and I did great in in chemistry, in chemistry you learn molecular bonds with visuals, so it makes sense this video was made like this. Great work.

  4. I took me many videos and repetition but you just cleared up a big point on why it's called mono unsaturated. It's basically a saturated with one unsaturated. The pictures really really really helped

  5. So here we are in 2022 and I’m assuming, and you know what they say about assuming lol, that we need not worry about the addition of trans fats to our food as per FDA restrictions.

  6. The LDL/HDL bad/Good hypothesis is debunked and out of date. Most LDLs are perfectly healthy and are an essential part of a healthy blood supply. It is only the small dense LDLs which are problematic.

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