General > General Technical Chat
do you work out?
SilverSolder:
Yes, it is all too easy to munch a couple of snacks and get hundreds of calories in the back door...
thm_w:
--- Quote from: BrianHG on June 18, 2020, 04:25:00 pm ---This isn't the case for many North Americans. Our appetite is such a finely tuned system that If we were to only eat 4 pistachio nuts a day over our requirements, within a year, anyone of us would put on an additional 25 pounds of fat. That amount of food fits on a single tablespoon. Yes, 1 single additional tablespoon a day of even something like a thick soup for a year over our needs will add 25 pounds after 365 days. You do not realize that if you a little more or too much over a few days that you will eat a little less over the next 2-3 days without consciously knowing you are doing so.
--- End quote ---
I see your points, although I will correct the numbers:
- 4 calories * 4 pistachio nuts * 365 days = 5,840 calories
- 5,840 / 3,500 = 1.66
That would be 1.7lb of fat gained in that year.
Foods are not all bioavailable at their caloric value, almonds are ~80%, pistachios probably not far off. Then add the fact that your body is not perfectly efficient at turning those added calories into fat, so the number might drop to ~70% or so.
We can also look at some real world studies where this was attempted, and see that adding walnuts/almonds to peoples diet will not cause them to gain weight. This is because the participants eat less of other foods to compensate, likely less healthy ones. Of course, if you went with a cup of pop instead of the pistachios, well, the results would be out the window..
https://academic.oup.com/ajcn/article/96/2/296/4576806
https://www.healthline.com/nutrition/calories-in-a-pound-of-fat#section4
https://www.healthline.com/nutrition/nuts-and-weight-loss#section2
--- Quote from: SilverSolder on June 17, 2020, 01:28:30 pm ---I thought fats are OK nowadays - i.e. unsaturated fats as in olives / olive oil, walnuts, etc. etc. - with no limit imposed other than staying below about 35% of the daily calorie intake as an absolute max?
One of the big surprises to a nutrition n00b like me, was (a) how much fat there is in dairy products, and (b) the fats are all the "bad" saturated type! Sadly, as I love milk, cheese, youghurt, and the rest of it, and can't be dealing with reduced strength versions! (I'd rather have 1/4 glass of whole milk than a full glass of skimmed, if you see what I mean.)
--- End quote ---
Full fat dairy should be ok, ideally yogurt/cheese or similar.
Personally I feel milk (13g lactose per cup), and low fat dairy should be avoided, but I don't believe the literature supports that.
https://academic.oup.com/jn/article/146/1/81/4616088
https://link.springer.com/article/10.1007/s00394-012-0418-1?rel=1
https://academic.oup.com/advances/article/10/5/924S/5569507
https://link.springer.com/article/10.1007/s00394-017-1581-1
https://link.springer.com/article/10.1007/s10654-017-0243-1
BrianHG:
--- Quote from: thm_w on June 19, 2020, 12:11:20 am ---
--- Quote from: BrianHG on June 18, 2020, 04:25:00 pm ---This isn't the case for many North Americans. Our appetite is such a finely tuned system that If we were to only eat 4 pistachio nuts a day over our requirements, within a year, anyone of us would put on an additional 25 pounds of fat. That amount of food fits on a single tablespoon. Yes, 1 single additional tablespoon a day of even something like a thick soup for a year over our needs will add 25 pounds after 365 days. You do not realize that if you a little more or too much over a few days that you will eat a little less over the next 2-3 days without consciously knowing you are doing so.
--- End quote ---
I see your points, although I will correct the numbers:
- 4 calories * 4 pistachio nuts * 365 days = 5,840 calories
- 5,840 / 3,500 = 1.66
That would be 1.7lb of fat gained in that year.
--- End quote ---
O)k, going along with your numbers, you would need to eat a surplus of 42grams worth of pistachio nuts to gain the 25lb over the year, not 4.2grams worth. That's around 60 nuts.
--- Quote --- if you went with a cup of pop instead of the pistachios, well, the results would be out the window..
--- End quote ---
Ohh boy, all I can say to those is learn to drink water... Exercise helps you want to prefer water over any other drink. However, if you exercise and drink those sports drinks, it trains your appetite to expect flavor and nutrients from what you drink and this will not help you kick the soft-drink habit. No matter what those sports drinks marketers push, drink water and eat a proper diet instead and you will do better in the long run. If you don't have a diet or sugar drink problem, then you are fine to take in those sports drinks, but they aren't as necessary as the marketing hype would like you to believe.
Zero999:
--- Quote from: BrianHG on June 18, 2020, 04:25:00 pm ---
--- Quote from: greasemonkey on June 18, 2020, 03:54:54 pm ---But in defense of my thesis:
- I eat as much as I can
- I am almost never hungry (even after a whole day of work & fasting)
--- End quote ---
And here lies the culprit. Your appetite is currently in tune with your needs. And if you are lucky, this will hold into old age.
--- End quote ---
You obviously haven't looked at the weight loss graph he posted, which shows this clearly isn't the case. He's 1.83m tall and weighed 80kg, a BMI of just under 24 and lost 10kg in just over four months, a BMI of just under 21. The speed of the weight loss and the fact only 40% of it was fat, is the hallmark of a crash diet.
--- Quote from: greasemonkey on June 18, 2020, 03:54:54 pm ---You all sound like my wife :-DD.
It could be very true that my weight loss is due to caloric restriction. I am too lazy to keep a log so we'll never know.
But in defense of my thesis:
- I eat as much as I can
- I am almost never hungry (even after a whole day of work & fasting)
- I don't feel cold during the winter (I always wear t-shirts)
- I don't crave carbohydrates
- I eat copious amounts of fat (bacon, eggs and cheese till the cows come home)
- I don't seem to have lost much muscle mass
- I generally feel good
- I sleep well
I also know all this could be attributed to confirmation bias/placebo effects/other uncontrolled variables, take your pick. All I am saying is it works for me.
--- End quote ---
Perhaps your wife is right?
Of course it's just to caloric restriction. Your body has being buring fat and muscle, both from its stores and the little you've being eating. There's no other explaination for this.
You don't have to be underweight to be have malnutrition and I'm not talking about the sort caused by lack of vitamins, but energy-protein deficiency. Loosing that much weight, that quickly, will certainly cause some degree of malnutrition, especialy as your BMI wasn't that high to start with.
That sounds familular and is quite worrying, as it marked the turning point when my dieting started to push towards something resembling an eating disorder, even though it wasn't clinically diagnosable at that point. I hope you don't go down the same path.
It's still relatively early days, since you've only being doing it since the end of last year. I've done a similar thing in he past and I remember it took awhile to realise anything was wrong. The human body can often take a real hammering, before it becomes nocticable. The lack of appetite isn't surprising and is caused by ketosis. I remember feeling good about the weight loss, but somehow still wanted to lose more.
Why did you decide to lose weight in the first place? Your starting BMI isn't considered to be overweight by medical professionals. I know BMI is just a rough indicator, but even if you were carying a little excess fat, it was certainly more healthy than this and I doubt you needed to lose more than 5kg.
Have you dieted before? If so what other diets have you tried?
SilverSolder:
Interesting fact: BMI (Body Mass Index) was developed at the behest of Florence Nightingale, who wanted a way of stating numerically whether a person was malnourished (underweight) or not.
Nowadays we use it mostly on the other end of the spectrum... that's progress!
I stumbled on an article about this woman last night, she was a fascinating figure in history. One of the first to apply science to health care.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version