The study of the appropriate provisions required to sustain life in an organism or the provisions themselves.

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61 views

Is it easier to burn a calorie of fat or a calorie of a carbohydrate?

Say someone eats 100 calories of chocolate vs. 100 calories of carrots. Something tells me that eating the chocolate will lead to you generating more fat. Will it? Is it harder to burn the calories ...
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1answer
288 views

Human Body “Fat” Equilibrium

Here's my theory: If you consume x calories each day with y amount of caloric expenditure each day you gain zero weight, regardless of x and y being out of balance. If you then mechanically ...
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28 views

Why cooked food considered nutritious if proteins decompose at much lower temperatures?

Food is cooked/baked at temperatures that are significantly higher than what's considered normal for proteins/amino acids (40°C). Then why such food is still considered nutritious after cooking? ...
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42 views

What are some places where biofilms could develop? [closed]

I'm trying to think of places where a biofilm could develop other than on medical equipment or food processing equipment such as stainless steel mechanized blades or knives. I'm thinking more along ...
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1answer
37 views

Is the sense for salt depending on the electrolyte level in our body?

I often noticed, after (heavy) physical activity like cycling, running, swimming or working an isotonic drink (to recover the electrolyte level) tastes less "salty" compared to when drinking it before ...
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1answer
68 views

Do chickens always lay eggs?

http://de.wikipedia.org/wiki/Hühnerei says it takes up to 24 h for a chicken to produce an egg. Is that dependent on the chickens nutrition, i.e., if it does not get enough food or the wrong kind, ...
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279 views

What are the pros and cons of eating earth (soil)?

I wonder if there are any benefits to eat earth. What I mean by earth is the topsoil that is sometimes on vegetable (I eat organic vegetables and some of them like spinach are full of topsoil). I ...
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2answers
377 views

Histidine - why essential for children?

Why is histidine an essential amino acid for children but not for adults ? What changes in the body occur which lead to the formation of histidine in adults but not in children ? What causes these ...
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164 views

Is fat distributed proportionally around the body?

One guide I have been using to tell me if I really am gaining a lot of weight is a ring around my 2nd last finger on my right hand, if I can slip it on and off without any resistance then I'm fine, ...
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208 views

Raphide toxicity in Pothos plant

Recently I found out that the common houseplant Pothos (Epipremnum aureum) is toxic to cats and dogs due to the presence of "insoluble raphides." I have a lot of these plants around my house and my ...
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56 views

What are the biological and nutritional benefits of having numerous smaller meals a day?

I have heard here and there that instead of consuming 3 largish meals (the traditional 3 meals a day), that consuming several smaller meals throughout the day is beneficial for health (and weight ...
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2k views

What is the difference between vegetable and animal fats?

I often hear from many people saying to waiters - "Please, don't put oil to salad". They probably believe the fat from vegetables has the same impact on the weight as an "animal" fat (meat, eggs, ...
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27 views

Hormones and body mass

I was wondering how some animals (bulls, elephants etc.) become so large by only eating grass or plant based material and why some humans can build large amounts of muscle and mass without a proper ...
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15 views

What biological processes are affected by dietary fiber besides peristalsis?

Dietary fiber affects the rate of peristalsis, but what other effects does it have? Does fiber affect signal transduction, hydration, the autonomic nervous system, organ function, other biological ...
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0answers
210 views

What chemical form of vitamin A is in chicken's egg yolk?

After doing some existing background research I am confused as to exactly what, in an unfertilised chicken egg's yolk, offers what we intake as 'Vitamin A' upon eating it. Plants typically produce ...
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1answer
81 views

Do repeated freeze-thaw strip nutrition from vegetables/food?

For some inexplicable reason from the ladies in my extended family (even friends!) seem to believe that vegetables/food should be subjected to as few freeze/thaw cycles as possible. The rationale put ...
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2answers
78 views

What nutritious insects exist to farm that require the least attention?

What nutritious insects exist to farm that require the least attention? I'm looking to automate simply, in a self regulating way. Edit: To add detail, I imagine the insects would live densely in a ...
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1answer
23 views

To what extent is eating and nutrition important in recovery from minor illness like viral fever?

I'm guessing it is important, but just to be a little more precise, What would be the maximum amount of calories above which it is just a waste (or even harmful) How much does the metabolism raise ...
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38 views

Distribution of nutrients throuought a drink made of plants?

In an attempts to eat my veggies for the day in one shot, I blended together a bag of salad with some water. The mixture separated by density, a thick top layer containing the bits of leaves, and a ...
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19 views

Cell energy consumption and food intake

I am wondering if each cell in human body starts consuming ten percent more energy, how much food one has to consume compared to normal intake?
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348 views

Are the 8 principal sugars in glycoproteins “essential sugars”? [closed]

Are there "essential sugars"? Some have suggested that the 8 principal sugars found in glycoproteins are "essential sugars": Galactose Glucose Mannose N-Acetylneuraminic acid Fucose ...