Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [diet]

The amount and variety of food consumed by an organism, usually for nutrition.

-2
votes
1answer
56 views

Why do wild animals not eat when caught?

I have caught a full grown opossum and put all the recommended foods in a cage for her, but she won't eat. I understand that they eat everything so why the hunger strike? Will she starve or eventually ...
0
votes
0answers
28 views

Effects Diet Soda has on body? [on hold]

So this is probably not the right topic for this question but I couldn't find an exchange based on Health so this is the best I have. I am wanting to go on a diet and was wondering how bad Diet Soda ...
2
votes
0answers
33 views

Can the human body survive in a zero sugar diet strictly through gluconeogenesis?

I read an article a while back about athletes (I believe cyclists) being exposed to a 0 sugar diet and their blood sugar levels stayed relatively constant, which prompted the question whether people ...
1
vote
1answer
84 views

When consuming carbohydrates and fats together, why are the fats caloric?

If I understand things, and I most likely don't: mammals primarily use carbohydrates to produce metabolic energy when there are sufficient carbohydrates to do so. The use of fats for fuel requires ...
0
votes
1answer
70 views

Is a species lifespan affected by meat consumption?

I read a review-like article about the hypothesis of Caleb E. Finch in a science magazine. The article of interest engages with the idea of Finch "[arguing] that immune functions and nutrition ...
4
votes
2answers
119 views

Does eating beans of a mother cause flatulence on babies?

Is it true that if you eat beans it could cause flatulence on babies (when breastfeeding them)? I can't find any research or scientific facts about that topic. I thought the body of the mother would ...
-1
votes
1answer
90 views

What makes red meat less healthy than seafood, after millennia of evolving to eat meat? [closed]

We are told that red meat is carcinogen; fish and white meat are not. What make us not "compatible" to red meat after thousands of years of evolution and meat eating, and yet seafood is opposite ?
2
votes
0answers
66 views

Glycogen replenishment after exercise

In the body, the liver holds between 90-110 grams of glycogen in storage, while skeletal muscle storage makes up another 400 grams. If a person exercises and depletes both stores, when a carbohydrate ...
0
votes
0answers
58 views

How to calculate the amount of protein synthesized knowing the amount of essential amino acids ingested?

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 ...
1
vote
0answers
16 views

What happens to lipoprotein lipase after a sugar only diet?

Insulin increases the activity of lipoprotein lipase thay allows cells to take in lipids from chylomicrons in the blood. If a person takes a sugar only meal like drinking coke, insulin is released. ...
9
votes
1answer
907 views

How harmful is aluminium?

I have been taught in school that aluminium is harmful for brain. Thus sour meals should not be cooked in aluminium pots and it is unhealthy to add lemon juice to tea while there is teabag in the cup, ...
2
votes
4answers
382 views

Why do people eat meat?

My main question is why do people eat meat? Can we not survive without meat? I recently became a vegetarian and I have not yet felt any impact on my health. Can any one explain this phenomenon from ...
1
vote
0answers
75 views

How many calories does an adult male goat need per day? [closed]

If I might be more specific, I'm interested in the calorie intake of a packgoat. But I'm happy with just some calories necessary for a general goat, so long as its estimated body weight is also given. ...
4
votes
2answers
79 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 ...
1
vote
2answers
2k views

Is there enough vitamin B12 in lakes, rivers and ponds, for humans not to need to take supplements?

Vegans will often say that having an animal-free diet is best for our health and is actually the diet that humans should be eating to function optimally. To which meat eaters will raise the issue of ...
1
vote
0answers
46 views

Has a walrus ever been filmed catching a seal under water?

Walruses have been long thought to be grazing feeders, scooping up clams from the sea floor. However, when walruses bodies have been examined by scientists, frequently the remains of seals are found ...
1
vote
1answer
94 views

Protein diet composition

I have read that non veg food are better for proteins while veg food is deficient in either one or other protein. If it is so are herbivores protein deficient always in case of animals as well as ...
3
votes
0answers
406 views

Can a lion be fed cat food? [closed]

Is there a correlation between eating raw meat and aggressiveness in felines and canines? Growing up, I was always told to cook the meat I gave to my dogs and cats so as not to give them the "taste ...
4
votes
1answer
3k views

What is the brain's preferred energy source? Glucose or ketones?

As with all cells in our body, I know that the brain can get fed from both glucose and ketones, so my question is, given both of them, which one would the brain prefer to utilize first?
2
votes
3answers
302 views

Does genetic morbid obesity exist?

With the acceptance of being a little overweight I hear of people saying they were born morbidly obese and it was genetically passed on. I'm aware being so obese leads to countless health issues, yet ...
2
votes
1answer
145 views

Essential fatty acids function [closed]

Why are essential fatty acids so essential? I know that if taken less then it would cause diseases, but what metabolic role do they play? Are their importance is just because of their structural role?
5
votes
2answers
1k views

Are Pond Algae Edible for Humans?

I've been farming freshwater fishes. After some time, i found some green algae grows there. When the algae dried, it looks like nori (which commonly used for sushi wrapping). So, i wonder if those ...
1
vote
1answer
53 views

Can the dietary fibres as chemical compounds be regarded as polymers? [closed]

At the level of molecular structure, can the dietary fibres be regarded as polymers?
5
votes
4answers
33k views

What makes humans omnivores, and not herbivores?

Some vegans claim that humans are herbivores, not omnivores, and that we are not physiologically designed to eat meat (see here: http://www.peta.org/living/food/natural-human-diet/). "According to ...
11
votes
4answers
289 views

How do antibiotics combined with a non-Western diet affect weight loss?

Wikipedia describes a Western diet as: ... higher intakes of red and processed meat, butter, high-fat dairy products, eggs, refined grains, white potatoes, french fries, and high-sugar drinks. In ...
0
votes
0answers
42 views

Co-dependency between carbohydrates, fats and protein in the mammalian diet?

Following up from the question Are carbohydrates an essential component of human diet? I am interested in knowing more specifically how carbohydrates, fats and proteins are linked in the mammalian ...
0
votes
1answer
84 views

Amino Acid requirement + intake in relation to diet + meat type [closed]

I was arguing with a friend: I said: The Yulin festivals cannot be condemned by western culture, as we also kill animals in equally cruel ways. She said: It isn't just that the killing is cruel, ...
5
votes
1answer
1k views

Why do blue jays eat my cat food?

We buy some run of the mill big-box store cat food. Over the last several weeks, I've observed a blue jay landing on the cat food dish, taking a piece or two, and flying off with it. I assumed it was ...
8
votes
3answers
253 views

Is Einstein's mass energy equivalence ($E=mc^2$) relevant to biological systems?

I'm more than 100% sure that the kilograms I eat don't get directly converted to feces and urine. I'm sure some of it goes to regenerating tissue that is constantly being disposed as well, and maybe ...
1
vote
0answers
51 views

Omnivore vs Carnivore territory size

Edit: Large carnivores require lots of territory. What about bears? They're omnivores. How much does that count? Is there anywhere I could find weight/territory ratios for mammals, depending on diet? ...
2
votes
1answer
1k views

How does an excessive amount of beta carotene affect skin colour?

How much is the daily need of beta carotene and how many carrots have to be eaten in order for one's skin to turn "orange". I found 2-4 mg/ day as basic need, 30 mg daily over three weeks turns white ...
1
vote
1answer
84 views

Creation of healthy genetically modified crops [closed]

GM crops are huge at the moment, and the noticeable 'counter movement' is for people to continue to purchase organic foods (please note I am specifically talking of GM crops and not meats, etc). The ...
5
votes
0answers
669 views

Does variation in human gut length vary predictably with diet of ancestors?

Background: Numerous online searches, textbooks and other sources seem to pin the average length of the human gut from mouth to anus (oroanal) between about 5-10m in length. To pick a reputable ...
13
votes
3answers
2k views

50:50 sugar/fat mixture

A couple of years ago I saw a BBC Horizon television documentary about sugar and fat. One section mentioned three experiments in which rats were given their ordinary rat food plus and unlimited supply ...
6
votes
1answer
93 views

Is “aggregate percentage” still a valid term in ecology?

Martin et al. 1946 define "aggregate percentage" as a metric that describes the mean percentage contribution of a group to the total mass/abundance of all samples. The metric is useful in datasets ...
5
votes
1answer
685 views

Are carbohydrates an essential component of human diet?

Are people able to satisfy all the needs of a healthy diet without consuming carbohydrates? My question includes the assumption that a person has no health condition that would prevent them from ...
3
votes
2answers
302 views

Bodyweight loss vs calorie shortfall

I have read that 1g of pure fat has 9 Calories. If I dieted successfully in a way that did not cause me to loose muscle, and I had a cumulative calorie shortfall of 90,000 calories. Would that ...
0
votes
1answer
49 views

What could make a person get ill from not eating often enough? [closed]

Say a person needs to eat every 3 hours, or s\he gets physically ill with fatigue and cold sweating, and this is the case every day. What could cause this?
7
votes
2answers
14k views

How do large herbivores get enough protein?

The food they eat seem extremely low on protein. Do they need less protein per mass unit than carnivores? Most of them grow quite a lot in the first year, is most of that from the mothers milk?
1
vote
0answers
33 views

How do furniture beetle larvae drink?

I have read that the furniture beetle (Anobium punctatum) has larva that will burrow for three to four years in wood before emerging and pupating. How do they obtain water during that time if they are ...
1
vote
1answer
108 views

Is it possible for a person to eat so many carrots that one turns orange?

I once read that Jerry Rubin (a famous 1960s activist) ate so many carrots that he turned orange. (This was in the East Bay Express, around twenty years ago.) I assumed it could be true, though he ...
1
vote
1answer
2k views

Does dairy negatively affect the voice for singing?

Singers and actors are warned not to consume dairy, primarily milk, before a performance. From personal experience, I know that this is a very valid warning. It is commonly assumed that this is due to ...
2
votes
0answers
52 views

Could felines live without meat?

Algae are a source of taurine and mushrooms are a source of vitamin D3. Both also contain high protein. So, it seems possible to feed a cat or other felines without any meat. Are there any concerns to ...
5
votes
1answer
1k views

What are the most important factors influencing a person’s gut microbes?

You are your bacteria! The probiotics and the antibiotics... There has been on going discussions about how our gut bacteria is important for a healthy lifestyle. Figure 1: Schematic diagram ...
-1
votes
2answers
590 views

Can pandas hunt for meat?

Recently, I learned that pandas have a carnivore's digestive system but that it exists almost exclusively as a herbivore. If pandas hunted would they be able to find meat in their environment? Can't ...
4
votes
0answers
91 views

Does anxiety about weight or eating cause people to become overweight?

A while ago I saw this TED talk about the futility of dieting. The speaker suggests that a body maintains a homeostatic weight point and returns to that weight after dieting has stopped: Turns out ...
0
votes
1answer
163 views

Question about contents of small bowel

I know, or at least I think I do, that the contents of the stomach are called chyme and that it is acidic. What are the contents of the small bowel called and is it acidic?
0
votes
0answers
86 views

Are vegetables really needed in our diet?

I want to believe that eating vegetables is necessary even when one takes vitamins, but I can't find any medical evidence for this. To make my question specific, suppose a study on twins were done in ...
5
votes
1answer
1k views

Can reptiles digest grains?

As a caretaker of a turtle, I sometimes struggle understanding the logic behind the inclusion of corn, soybean, and wheat meals in reptile food, such ingredients seem truly aberrant from what a ...
7
votes
1answer
59 views

Is there any conclusive study relating the food consumed and the occurrence of acne?

The internet says a million things about what to eat and what not to eat in regards to impacts on acne. For instance: Refrain from dairy products. Refrain from food heavy in unsaturated fat. Refrain ...