47 replies to this topic

[sthira]

^^^ interesting, I have that experience, too. Eating a purple potato fills me up quickly. Yet I can eat several sweet potatoes all at once before filling up.

[resveratrol_guy]

^^^ interesting, I have that experience, too. Eating a purple potato fills me up quickly. Yet I can eat several sweet potatoes all at once before filling up.

 

To be clear, I was referring to purple or violet sweet potatoes (which are neither sweet nor potatoes). So correct me if I'm wrong; you mean:

 

If I eat a purple potato, I'm quickly satisfied.

If I eat an orange sweet potato, it doesn't affect my appetite much.

Therefore it's the purple stuff (anthocyanin?) that affects appetite, not sweet potato vs potato.

[sthira]

^^^ interesting, I have that experience, too. Eating a purple potato fills me up quickly. Yet I can eat several sweet potatoes all at once before filling up.

To be clear, I was referring to purple or violet sweet potatoes (which are neither sweet nor potatoes). So correct me if I'm wrong; you mean:

If I eat a purple potato, I'm quickly satisfied.
If I eat an orange sweet potato, it doesn't affect my appetite much.
Therefore it's the purple stuff (anthocyanin?) that affects appetite, not sweet potato vs potato.

Yep, you got it. Purple potatoes (yams, really: Dioscorea alata) seem to fill my belly quicker than orange sweet potatoes (Ipomoea batatas). Maybe purple has more calories -- that's how it feels anyway.

[resveratrol_guy]

 

 

^^^ interesting, I have that experience, too. Eating a purple potato fills me up quickly. Yet I can eat several sweet potatoes all at once before filling up.

To be clear, I was referring to purple or violet sweet potatoes (which are neither sweet nor potatoes). So correct me if I'm wrong; you mean:

If I eat a purple potato, I'm quickly satisfied.
If I eat an orange sweet potato, it doesn't affect my appetite much.
Therefore it's the purple stuff (anthocyanin?) that affects appetite, not sweet potato vs potato.

Yep, you got it. Purple potatoes (yams, really: Dioscorea alata) seem to fill my belly quicker than orange sweet potatoes (Ipomoea batatas). Maybe purple has more calories -- that's how it feels anyway.

 

 

LOL "batatas"! How many things do we have to label as "potato", that aren't? Oh well we're stuck with it.

 

Anyway yams are yet another "potato-oid". My impression is that, epidemiologically speaking, the best associations are found with sweet potatoes.

 

Empirically, the purple/violet color is not bound strongly to the meat, and readily escapes into the water used for steaming. So presumably, it's also the first compound to escape into the digestive system, long before the gut bacteria get a chance to interact with the long-chain starches. I would bet that the anthocyanin-or-whatever-it-is is therefore responsible for the premature loss of appetite. Whether this occurs because the liver thinks it's overwhelmed, or because we're banging AMPK, or what, I don't know. The only thing I can say is that I don't feel sick. I just powerfully lose interest.

 

Thank you for sharing your experience. Two fuzzy data points are better than one, especially when they apply to different foods.
 

[ceridwen]

Eating apples apples has that effect on me.

[normalizing]

resveratrol guy, so basically if you keep eating those potatoes you will starve long term since they completely abolish your hunger. i just dont get how this can work positively long term, i do understand it might help short term to lose weight and so on but how will you keep up with nutrient requirements if you have one potato each time before any other food?

Edited by normalizing, 27 January 2016 - 02:38 AM.

[resveratrol_guy]

resveratrol guy, so basically if you keep eating those potatoes you will starve long term since they completely abolish your hunger. i just dont get how this can work positively long term, i do understand it might help short term to lose weight and so on but how will you keep up with nutrient requirements if you have one potato each time before any other food?

 

This is a serious consideration. Bitter gourd seems to have a similar effect, as does pterostilbene. The only good answer to your question is that we need to track nutrient intake and total calories in order to ensure that they meet metabolic requirements. This is especially important in calorie restriction regimes wherein malnutrition is a distinct possibility.

[normalizing]

but i still dont understand if this stuff deters you from food, how do the okinawans eat it + fish, pork (believe it or not) and other soy products usually together? very strange. might be very small pieces combined tho heh

i was going to ask you about pterostilbene, do you also take this one regularly and is it powder or some supplement? i have seen only one formula containing it and it was a mix with resveratrol, but i dont wanna take resveratrol anymore as it makes me sick. and to ask another question, do you still plan on eating the those potatoes or not?

[resveratrol_guy]

but i still dont understand if this stuff deters you from food, how do the okinawans eat it + fish, pork (believe it or not) and other soy products usually together? very strange. might be very small pieces combined tho heh

i was going to ask you about pterostilbene, do you also take this one regularly and is it powder or some supplement? i have seen only one formula containing it and it was a mix with resveratrol, but i dont wanna take resveratrol anymore as it makes me sick. and to ask another question, do you still plan on eating the those potatoes or not?

 

I don't ever eat potatoes; I eat sweet potatoes, which are a different species. And yes, I had one today.

 

I would venture to say that resveratrol is not making you sick; rather, it's the emodin that comes with resveratrol sourced from polygonum cuspidatum. Just a hunch.

 

Yes I still take pterostilbene, pretty much daily. It's Pteropure powder from Chromadex.

 

I wouldn't say that the appetite suppression is 100%, so I can still eat other stuff. But to give you an idea, I have 100 calories left in today's budget, and I'm looking at my remaining pomegranate juice with disgust. I will force it down before I go to bed. Granted, I don't blame this entirely on the sweet potato I had, but it does seem to make sugar even less appealing. Probably it would be much easier to consume with meat, or as in my case, a giant blob of c60oo.

[resveratrol_guy]

P.S. On second thought, normalizing, maybe I should have taken you a bit more seriously. I've given up on finishing the juice. It's just to unappetizing to think about. I'll have to leave it at 100 calories under budget until I eat again the day after tomorrow.

[normalizing]

im not sure how this sweet potato is positive making you lose interest in food and you losing weight daily now. but not my business, carry on tho i would suggest just doing calorie restriction without buying the sweet potatoes this way you can at least save money on both sweet potatoes AND the rest of the food.

[resveratrol_guy]

Well, the longevity associations compel me to continue consuming purple sweet potatoes. However, I suppose I have to pay more careful attention to appetite suppression.

[ceridwen]

The Queen of England only eats purple potato's too and she is healthy

[resveratrol_guy]

The Queen of England only eats purple potato's too and she is healthy

 

While I have no knowledge of her diet, to be clear, I was referring to sweet potatoes with purple meat. When most people speak of purple potatoes, they're referring to potatoes with purple skin and white meat.

 

Why can't we just call it a rootblob or something? "Sweet potatoes", really!
 

[sthira]

Fwiw, I'll say it again because maybe I wasn't clear the first two times: I seem to get fuller sooner when eating sweet potatoes that are brown on the outside, and purple on the inside. I also seem to get fuller later when eating sweet potatoes that are brown on the outside and orange on the inside. This feels to me like purple sweet potatoes have more calories than orange sweet potatoes.

[resveratrol_guy]

Fwiw, I'll say it again because maybe I wasn't clear the first two times: I seem to get fuller sooner when eating sweet potatoes that are brown on the outside, and purple on the inside. I also seem to get fuller later when eating sweet potatoes that are brown on the outside and orange on the inside. This feels to me like purple sweet potatoes have more calories than orange sweet potatoes.

 

I think you just stated our emerging hypothesis here, which is that the purple stuff somehow tricks the body into thinking it has eaten more calories than it actually has. To be sure, purpleness does not add appreciably to calories; I can't think of a single raw food containing lots of natural purple coloring which is associated with obesity, unless we're talking heavily processed purple corn chips.

Edited by resveratrol_guy, 29 January 2016 - 01:58 PM.

[normalizing]

its quite clear that purple sweet potatoes are not directly but indirectly associated with longevity among people consuming them based on the fact that they make you feel fuller and you lose apetite therefore causing calorie restriction and calorie restriction is associated with longevity. so why not just practice calorie restriction by itself instead of eating those things?

[resveratrol_guy]

its quite clear that purple sweet potatoes are not directly but indirectly associated with longevity among people consuming them based on the fact that they make you feel fuller and you lose apetite therefore causing calorie restriction and calorie restriction is associated with longevity. so why not just practice calorie restriction by itself instead of eating those things?

 

Well of course you can practice CR without any help from sweet potatoes. It's just easier when they are included in the diet. Excessive restriction is probably not a medically signicant concern other than in people afflicted by psychological eating disorders. If the mouse studies are informative, maximum life extension occurs at around 65% restriction, with half of the benefits occurring at around 25%. Granted, at 65%, it's impossible to do much besides using the Internet. The point is that anything which deepens CR is probably a good thing, provided that one is left with sufficient energy to be productive and able to avoid the infections and physical accidents which are riskier in the relative absence of body fat.