Exam 3-advanced nutrition 2
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- Red carotenoids contain lycopene which can be found in what foods:
- pink grapefruit, pasta sauce, tomato products, watermelon
- Orange carotenoids contain alpha and beta-carotene which are found most in:
- carrots, pumpkin, squash (acorn or winter), sweet potato
- Orange/Yellow carotenoids contain beta-cryptothanzin which are best consumed in:
- orange, pineapple
- Yello/Green carotenoids contain lutein and zeaxanthin which are best consumed in:
- yellow corn, broccoli, mustard greens, romaine lettuce, spinach, turnip greens
- The pink color in sea food like salmon is caused by a carotenoid called:
- astaxanthin
- In general, are supplements recommended for carotenoids?
- No, use foods, the supplements cannot come close to the complexity of foods.
- RDA for Retinal Activity Equivalents:
-
female: 700 RAEs
male: 900 RAEs
1 mcg retinal=1 RAE
12 mcg beta-carotene=1 RAE - Food sources of retinyl esters and various carotenoids are usually complex with protein that must be hydrolyzed by what?
- pepsin and certain upper small intestine exzymes before the vitamin or carotenoid can be absorbed
- How are carotenoids absorbed?
- via the chylomicron
- Where is vitamin A stored?
- The liver stores vitamin A in stellate cells.
- Functions for Carotenoids and Vitamin A include:
-
1. vision (as retinal)
2. Cell differentiation (retinoic acid)
3. Immunity
4. Protein synthesis
5. Glycoprotein synthesis for Cell Communication