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Questions tagged [food]

Any substance consumed to provide nutritional support for the body.

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What do chimpz/bonobos/orangutangs/gorillas feed their babies with?

I just read this questions and it made me curious about what a more original baby diet would look like. So, at what age do our closest relatives in the animal kingdom start giving their offspring more ...
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Recommendation for daily intake of natural sugars

There multiple articles/topics raised on the internet about the free/added sugars in the human diet as for example WHO recommendation on page 16, but at the same time not that much about the naturally ...
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20 views

How could eating/drinking an alkaline substance change blood ph?

https://www.lifehacker.com.au/2016/12/no-foods-do-not-alter-the-ph-of-your-blood/ This article suggests that while the body maintains homeostasis through regulating ph via the kidneys, "High doses of ...
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22 views

How do you know moldy cheese is not spoiled? [migrated]

This question made some people laugh, but I think it is a serious issue. There are types of cheese on which mold is cultivated, such as Rocfort cheese. Unfortumately, some harmful mold may grow on ...
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12 views

What is the consensus, if it exists, on the (absence of) biological effects of artificial sweeteners?

I tried to Google (and PubMed) the question, but it seems to be fairly polarized debate and there does not seem to be a consensus as to whether sweeteners like asparatme, acesulfame etc. have ...
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29 views

What is the chemical (element proportions) composition of standard food?

If we take a standard, nutritious diet of a human, and split it into atoms, what will be the typical proportions of the basic constituents: carbon, hydrogen, oxygen? We can ignore all the ...
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2answers
59 views

Is identifying the genus of a fungus (mushroom specifically) enough?

Does the genus of a mushroom have enough information about it, without the species? Let's say I wanted to identify a mushroom (when picking) to see if I can safely pick and later eat it. Let's say I ...
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1answer
35 views

How do people measure how many calories or proteins/fats/сarbohydrates are in some food?

How is the composition (in fats, proteins or carbohydrates) of a certain food estimated and how is the amount of calories provided by the food calculated?
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1answer
290 views

Is it possible that there are unknown vitamins?

Is it possible that there are vitamins or other essential nutrients about which we still do not know?
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27 views

Does freezer burn affect only the cells on the surface of food?

Suppose i submerge a banana halfway through in a tray with water. Part of the banana is submerged in water, part of it is on the outside. The water and banana in the tray is being put in the freezer ...
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2answers
89 views

Why is Cacao a stimulant?

As I write this I've just eaten a fair amount of cacao (not cocoa) powder and it's given me quite a buzz. I've googled the effects and the Internet seems to think it's somehow psychoactive although it'...
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1answer
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Searching a fructose degrading bacteria [closed]

my question is do you know a fructose degrading bacteria? Wich is straitforward to use and cultivate? Wich shouldn't create excrements, that can't be removed simple.
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1answer
60 views

Why do ADULTS need protein in their diet, if they are not growing? [duplicate]

Why do ADULTS need protein in their diet, assuming they are not growing? What happens to the amino acids already present in the body? Why don't our bodies conserve them?
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Are there edible beetle larvae eating saw dust?

Really sustainable way could be to breed insects on waste, compared to e.g flower/vegerables. But are there such species?
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1answer
105 views

Are turkish hazelnuts edible?

The title of this question is Google suggestion verbatim, when I tried to write it. Yet, I found no answer specifically for Turkish hazelnuts. Turkish hazelnut is a tree and it's fruit looks ...
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2answers
105 views

Can you eat cancer cells without risk?

Afaik GMO products are not a real risk to health of course if they do not contain toxins. But how about cancer cells? Like say rhabdomyosarcoma which is more or less a muscle cancer found also in ...
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1answer
43 views

Why do alpha-gal allergies only occur after a tick bite if alpha-gal is already present in red meat?

I just read an NPR article about allergies to red meat being caused by tick bites. That stood out to me because I thought allergies are triggered by an initial exposure to some allergen. In this case, ...
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1answer
15 views

Who creates first nitrogen compounds in the food supply chain

As I understand the food supply chain, organic compounds have to be created from a unlimited source (air, water...). For instance, I figure that plants transform CO2 from air to organic carbon ...
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43 views

Why do humans enjoy spices? [duplicate]

It seems that many flavor and food preferences can be explained in the context of regulating feeding behavior. Generally, organisms tend to enjoy those foods which are optimal for them to feed on and ...
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1answer
33 views

How to estimate the amount of protein that are going to be synthesized?

I'm studying protein synthesis to understand how the body use the different amino acids to build proteins. In particular I would like to learn how to (roughly) calculate the total amount of protein ...
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0answers
21 views

Overall, for the most part, which is more important--capturing prey or surviving predators or parasites?

For animals in nature, does selection intensity tend to be stronger upon abilities used against parasites or predators or abilities used against prey? Any empirical reports would be appreciated. I ...
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0answers
56 views

Does boiling or frying fish make Omega3 be denatured?

I read some articles about omega-3, and I found there are two different opinions about how sensitive omega-3 is to heat. one is Applying heat to omega-3 make omega-3 become trans-isomer which is very ...
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1answer
81 views

Why there are no plants that offer salt fruits as opposed to sweet fruits?

Why there are no plants that produce salt fruits? Is it because other animals do not like salt to the same degree of humans?
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1answer
174 views

Is it possible to be allergic to the yolk of an egg but not the egg white?

At lunch one day, my friend had a hard boiled Easter egg. When he pealed it he squeezed the yolk, or yellow part, of the egg out. I asked him what on earth he was doing and he said, "I'm allergic to ...
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1answer
35 views

Nonpancreatic digestion of tryglicerides

In an answer about coconut oil I can read the digestion of coconut oil does not involve in the Pancreatic digestive enzyme system In both primary and secondary school I have learned that fat needs ...
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0answers
45 views

How did evolution allow to stay a condition like the refeeding syndrome? [duplicate]

This is a syndrome where anyone that is malnourished can die if he suddenly takes way more food that what they are used to, and it's something that is extremely likely to happen to every person if he ...
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1answer
60 views

Is it possible to produce bread using only microorganisms?

I am wondering if it is theoretically possible to produce bread using only microorganisms. If one lists all the chemical components, proteins fermentation time, etc., is it then doable to combine the ...
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0answers
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I found some 'Greenish Color Oil Bubble/Patches' in my Hostel's Canteen Tea

I found some 'Greenish Color Oil Bubble/Patches' in my Hostel's Canteen Tea. Here's the picture. Do you have any idea what is it? Is it harmful? I'm sure that the glass was clean before I poured the ...
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0answers
40 views

Dangerous fruits some people are immune to?

Are there known fruits/vegetables that are poisonous (or dangerous in some other way) that aborigines can eat (they're immune to their harmful effects) but foreigners can not? What I'm asking about is ...
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2answers
75 views

Do birds change their diet before migration?

Migration takes up a lot of energy, so I am wondering if birds (in my case mallards) change their diet / food preferences in the weeks before migrating. Do they select for more energetic foods to fuel ...
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0answers
60 views

Can combining C3, C4 and CAM plants in a greenhouse/vertical farm increase the efficiency of plant production?

I am reading a little about different types of photosynthetic systems in plants because I want to learn something about plant production in greenhouses/vertical farms (I have no experience in this ...
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2answers
164 views

Are peanut proteins similar to chicken meat proteins?

I'm studying amino acids content in vegetable food. I was looking at peanut protein and noticed its similarity with chicken meat, as you can see in the table below (quantities are measured in grams). ...
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1answer
106 views

Use lab agar for cooking [closed]

Our lab manager suspect that something wrong with our lab Bacto agar (Difco). So she decide to throw it to the garbage. I think that it's just a waste to throw that thing. Can someone think of reason ...
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1answer
54 views

Does minimizing hunger maximize weight gain?

Due to the "obesity epidemic," there is a lot of focus on the causes of weight gain. We typically talk about strategies to cause weight loss, but what about strategies to minimize/maximize hunger? ...
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2answers
5k views

Why don't chilli peppers taste as hot in space?

The following commentator writes: Chili peppers don’t taste as hot in space as they do on Earth. Nobody knows why. We know that the 'hot' feeling of chilli peppers is caused by Capsaicin. We read: ...
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0answers
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Is the primary evolutionary purpose of a fleshy fruit to benefit the sprouting seed or the frugivorous seed disperser animal?

In a question about the low protein content in fruits, one answer suggests the energy, carbohydrate, and protein content in a fruit evolved to entice animal seed dispersers, not foster the sprouting ...
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22 views

Red chilli causes ulcers?

It is said that the skin of dried red chilli peppers, once eaten gets stuck in the intestines and causes gastric ulcers. Is this true?
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1answer
105 views

What is this grainy surface on my two-week-old sourdough starter?

I'm baking bread at home as a hobby, using sourdough. After skipping one baking day, I haven't used my sourdough starter for two weeks. When opening the jar in which I keep it, I saw the surface had ...
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1answer
201 views

What really causes the toxicity of wrongly-thawed meat?

(Note: I've seen multiple related questions over at Cooking.SE, but I'm looking for a scientific explanation, not cooking advice!) I've been researching this for a couple of hours but the more I read,...
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0answers
43 views

Difference between feral and domesticated honey?

Is there any significant differences in composition (and/or taste) between the honey of wild ("feral") honeybees versus that of domesticated ones used in beekeeping?
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1answer
414 views

Does pepsin digest plant protein?

This may sound trivial, but... Protein is sourced from plants and animals. Pepsin and HCl digest meat (animal protein). Does pepsin also digest plant-based proteins? I took a look at few articles ...
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1answer
2k views

Why do we get bored of certain food items after repeatedly eating them?

Why do many people not like certain food items after eating them for long? They seem tasty first, and after eating many times, it feels like we get bored.
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1answer
171 views

Tea that makes everything taste like dirt

My highschool biology teacher once gave us (her class) a tea which made everything taste like dirt. I remember that chocolate candies, spicy hot sauce, and salty crackers all tasted the same after ...
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1answer
215 views

Irradiation instead of pasteurization?

Can we just replace pasteurization with simple irradiation for most (if not all) foods? (For example, such as milk, to sterilize and preserve flavors)
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1answer
22 views

Protein food eating tendency

As I understand human love fatty food as they taste good because it has more energy which was good when we were primitive and food was scarce and unreliable, Is there same urge for protein food too? ...
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2answers
79 views

How do we know we have to use the mouth for eating and drinking?

I have a question that I am very curious to: how do we know we have to use the mouth for eating and drinking? Because we have multiple openings where, if we didn't know better, could put food and ...
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1answer
35 views

Are there any creatures that will eat their own limbs or body parts to survive?

I'm curious if there are any insects, bacteria or perhaps even large animals who would bite off their own limbs or body pieces to chew on in the desperate times of hunger.
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Raw food diet digestion

I haven't really paid attention to the raw food diet and the claims of its supporters until now. A passage from this website says: The basic premise behind preparing raw food is not to cook food ...
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1answer
186 views

What fruit did I just accidentally buy?

I live in Oxford, in the United Kingdom, in a part of the city with a vibrant multicultural community. My local corner shop has an excellent selection of spices, pulses, and obscure and vegetables ...
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2answers
102 views

Why cooking make foods , e.g rice, vegetable etc, soft?

My initial guess was it is due to absorption of water during cooking (role of heat is probably to accelerate this process). So to verify this I have left uncooked rice in water for two days but so ...