Fiber Flashcards

1
Q

How much fiber do people need (18-50 years)?

A

25g for women

38g for men

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2
Q

How do you determine how much protein you need?

A

0.8g/kg of body weight

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3
Q

Where does glycogen come from?

A

animals

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4
Q

Which carbohydrates taste sweet?

A

simple carbs

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5
Q

Which carbohydrates do NOT taste sweet?

A

complex carbs

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6
Q

What are examples of simple carbs?

A

monosaccharides and dissacharides

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7
Q

What are monosaccharides and dissacharides?

A

sugars

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8
Q

What are examples of complex carbs?

A

oligosaccharides and polysaccharides

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9
Q

What are oligosaccharides and polysaccharides?

A

saccharides or glycans

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10
Q

What is the definition of a polysaccharide?

A

more than 10 sugars together

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11
Q

What are examples of glucose?

A

starch, glycogen

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12
Q

What are the different types of polysaccharides?

A

starch, glycogen, soluble, insoluble

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13
Q

Which polysaccharides are considered homoglycans?

A

starch, glycogen, soluble fiber, insoluble fiber

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14
Q

Which polysaccharides are considered heteroglycans?

A

soluble fiber, insoluble fiber

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15
Q

What is the definition of dietary fiber?

A

all nondigestible carbs and lignin found in plants

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16
Q

Describe soluble fibers.

A

they swell in water, short chain FA, can increase satiety

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17
Q

Describe insoluble fibers.

A

does not swell in water and helps with motility

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18
Q

What is a viscous fiber?

A

forms a gel in the gut, it is a good binder

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19
Q

What are fermentable fibers?

A

metabolized by colonic bacteria

20
Q

What is a functional fiber?

A

a fiber that has physiological benefit when consumed

21
Q

What are examples of soluble fibers?

A

beta-glucans, gums, wheat dextrin, psyllium, pectin, inulin, Konjac glucomannan

22
Q

What are examples of gums?

A

seeds (chia, flax)

23
Q

What are examples of insoluble fibers?

A

cellulose, lignan, some pectins, some hemicelluloses

24
Q

What are examples of viscous fibers?

A

pectin, beta-glucans, some gums, psyllium, Konjac glucomannan

25
What are examples of fermentable fibers?
pectin, beta-glucans, guar gum, inulin, wheat dextrin
26
What are examples of non-fermentable fiber?
cellulose, lignan
27
Where can you get fermentable fibers?
prebiotics
28
What is the number 1 source of fermentable fibers in the SAD?
wheat dextrin
29
What are viscous fibers good for?
lowering blood sugar and cholesterol
30
What is the breakdown of dietary fiber?
soluble and insoluble fiber
31
Which kind of soluble fiber can swell in water?
soluble fiber
32
What can soluble fibers bind to?
cholesterol, triglycerides and glucose, which decreases their absorption
33
Are soluble fibers digestible?
no
34
What can some soluble fibers do in the large intestine?
fermented to short chain fatty acids and gas (fermentable fibers)
35
Where can you get soluble fibers?
inside of fruits and vegetables
36
Which kinds of fibers can make you feel fuller longer?
soluble fibers
37
Can insoluble fibers swell in water?
no
38
Can insoluble fibers be digested or fermented?
no
39
What do insoluble fibers do?
decreases GI transit time (AKA speeds things up
40
How is insoluble fiber excreted?
it is excreted unchanged
41
Where can you get insoluble fiber?
fruit and vegetable peels, whole grains
42
What must you do when you eat insoluble fiber?
increase your water intake
43
How much fiber do people need (>50 years)?
Men: 30 g/day Women: 21 g/day
44
What are some sources of fiber?
fruits, vegetables, whole grains, legumes, nuts
45
What are some good sources of fiber?
beans, veggies, fruits, bran cereals, nuts and seeds