can fish have cholesterol? i noticed that market shrimp is high in cholesterol... but, a food that is high in cholesterol is a relative term anyway. just because it is high in cholesterol for us doesn't mean it's too much for fish... right?
fish with high cholesterol?
- Thread starter Big Business
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Big Business;505006; said:
excellent topic
lets define cholesterol first
Cholesterol is defined as a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals.
so yes they do have cholesterol, is alot bad for them? i am inclined to disagree since a fishes diet, specifically a predators diet (peacock bass and arowana for example) is usually high in cholesterol, with there diet of fish, crustaceans, and any other animal matter (birds lizards, rodents, etc). Cholesterol is present in higher concentrations in tissues which either produce more or have more densely-packed membranes, for example, the liver, spinal cord and brain which are consumed along with everything else.
great info delgado. would you expect cholesterol to be an issue with any type of predatory fish?
a little off topic, but why don't you buy bagged shrimp? freshness? or is there another reason
a little off topic, but why don't you buy bagged shrimp? freshness? or is there another reason
In the past, shellfish were believed to be high in cholesterol. New measuring techniques indicate that cholesterol levels of many shellfish are much lower than was previously thought. In fact molluscs such as clams, oysters, scallops and mussels were found to have a large amount of sterols, which have similar chemical structure to cholesterol. These sterols appear to have a beneficial effect because they inhibit the absorption of cholesterol eaten at the same meal.
Cholesterol levels are not significant in most sea creatures. The exception being sedentary predators such as groupers that are fed only feeder fish. Finfish are generally quite low in cholesterol; shellfish have low to moderate amounts. Cholesterol levels in crab and lobster are similar to that found in the dark meat of chicken. Because shellfish contain very little saturated fat, they are no longer excluded from typical low-cholesterol diets. Saturated fats may increase the ability of dietary cholesterol to increase blood cholesterol.
Omega-3 fats keep the blood flowing properly in finfish when the fish swims in colder water. Therefore, finfish caught from northern locations or from fall to spring season tend to have high omega-3 fatty acids. Tropical fish do not have much omega-3 fats in their fatty tissue, but they still have good sources of omega-3 fatty acids from their muscle tissue. Research suggests that omega-3 fatty acids from sea animals protect against heart disease in a number of different ways:
* They inhibit the formation of blood clots (thrombi). This is important because most heart attacks result when blood clots get stuck in blood vessels leading to the heart or brain.
* They may prevent heartbeat abnormalities, thereby protecting against sudden cardiac arrest, a major cause of death from heart disease.
* They reduce triglycerides, a type of fat in the blood which, when raised, increases the risk of heart attacks.
* They may retard the growth of plaques that narrow arteries leading to the heart.
Cholesterol levels are not significant in most sea creatures. The exception being sedentary predators such as groupers that are fed only feeder fish. Finfish are generally quite low in cholesterol; shellfish have low to moderate amounts. Cholesterol levels in crab and lobster are similar to that found in the dark meat of chicken. Because shellfish contain very little saturated fat, they are no longer excluded from typical low-cholesterol diets. Saturated fats may increase the ability of dietary cholesterol to increase blood cholesterol.
Omega-3 fats keep the blood flowing properly in finfish when the fish swims in colder water. Therefore, finfish caught from northern locations or from fall to spring season tend to have high omega-3 fatty acids. Tropical fish do not have much omega-3 fats in their fatty tissue, but they still have good sources of omega-3 fatty acids from their muscle tissue. Research suggests that omega-3 fatty acids from sea animals protect against heart disease in a number of different ways:
* They inhibit the formation of blood clots (thrombi). This is important because most heart attacks result when blood clots get stuck in blood vessels leading to the heart or brain.
* They may prevent heartbeat abnormalities, thereby protecting against sudden cardiac arrest, a major cause of death from heart disease.
* They reduce triglycerides, a type of fat in the blood which, when raised, increases the risk of heart attacks.
* They may retard the growth of plaques that narrow arteries leading to the heart.
Oddball;505098; said:
Very interesting topic .. so shell fish and lobster are okay for a person watching the cholesterol in moderation..contrary to what they thought a short time back.. ..if a person is allergic to shell fish and lobster would they also be allergic to Omega-3..just thought i would ask..since i have been trying to find out more info..
If you can eat coldwater white fish meat without suffering an anaphylactic reaction, it would indicate the omega-3 is not the cause of any shellfish allergy. Omega-3 exists in the circulatory systems of fish.
Oddball;511701; said:
It seems i can eat it only in small doses.. for instance if i go out to restaurant a few nights a week and order, crab, then lobster then shrimp i get hives.. if i just have one dinner of it in a month i am okay.. so does the amount have alot to do with the reaction? You must be a doctor or scientist?? Thank you..
One more question for you Oddball..is there Omega 3 or fish oil in Glucosamine &Chondroitin..could it be an over dosing on supplements if you take both.... because it does say on the bottle if allergic to shell fish please consult your doctor.. maybe it should be one or the other?? Thank you!!!!!!!!
OK, you're misunderstanding the posts. Omega-3 is probably not the agent causing your allergic reactions. Omega-3 occurs in white fish meats (FINFISH- like trout, flounder, bass, etc.) and not just in inverts like shrimp and crabs.
Glucosamine and Chondroitin may contain minerals from invert exoskeletons. For the effect desired from this supplement, you may need to switch to shark cartilage.
Glucosamine and Chondroitin may contain minerals from invert exoskeletons. For the effect desired from this supplement, you may need to switch to shark cartilage.