Sweets and cancer

Posted by asolidrock @asolidrock, Feb 12 12:41pm

I've heard that cancer feeds off sweets. My oncologist says you can eat sweets. Does anyone else have any opinions?

Interested in more discussions like this? Go to the Prostate Cancer Support Group.

Profile picture for northoftheborder @northoftheborder

Yes, I'm not a fan of artificial sweeteners either.

But again, moderation is the key. As with, politics, sometimes discussions about food and health devolve into extreme, all-or-nothing debates, e.g.

"even a single slice of bacon will make your cancer accelerate and kill you"

vs

"my grandpa ate 1 kg of bacon and 6 eggs/day a day, washed them down with whiskey, and lived to 105"

I exaggerate, but only slightly. Neither position is especially helpful for most people. 😕

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I contend that it's in our makeup. I've seen way overweight people (no criticism) have perfect bp sugar level cholesterol etc. I've seen super thin people have to be on insulin. It's how God created everyone individually.

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What prostate cancer patients eat can influence cancer progression.

Eg: UCSF published an article entitled: "Prostate Cancer Study: More Health Benefits from Plant-Based Diet"

The article: https://www.ucsf.edu/news/2024/05/427571/prostate-cancer-study-more-health-benefits-plant-based-diet

The study itself: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2818122

From the article: "Eating more fruits, nuts and vegetables each day – along with fewer animal products – is associated with a nearly 50% reduction in the risk of prostate cancer progression. A study of more than 2,000 men with localized prostate cancer found that eating a primarily plant-based diet was associated with a 47% lower risk that their cancer would progress compared with those who consumed the most animal products"

Too much sugar consumption is assumed to be generally "unhealthful" in the study, but the citation supporting this goes to a different study that looked at whether higher sugar consumption increased the risk of coronary heart disease.

This pamphlet - UCSF food guides for prostate health doesn't mention sugar. https://urology.ucsf.edu/sites/default/files/uploaded-files/basic-page/food-guides-for-prostate-health-web-2024.pdf

UCSF has a webpage up that discusses sugar and cancer: https://osher.ucsf.edu/patient-care/integrative-medicine-resources/cancer-and-nutrition/faq/sugar-and-cancer

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Profile picture for kjacko @kjacko

@heavyphil I was a health. Fitness and nutrition educator for years. The diets of the young people, especially teenagers was mind boggling. It was not unusual for many students to walk into class at 8am with a bag of Cheetos and a large gulp soda or a cappuccino from Starbucks. Obesity was a huge concern. It’s not surprising that serious health concerns are affecting people at a younger age. We are not a country focused on health care, rather sick care.

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@kjacko I know…my mother was a school aid for years. The untouched food and milk they had to dump in the garbage every day because of state rules was criminal.
She brought home a dozen pint sized containers of milk on more than one occasion because she and the other aids couldn’t stand throwing it all away. And she probably would have been fired if found out.
But did she ever come home with Cheetos, french fries or sweetened juice drinks? NEVER…
Phil

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I have found the same information on searches. I have a sweet tooth (probably all 32). I also enjoy a decent glass of wine and any beer that is wet.

So... I have asked my oncologist (Joseph Wagner, HHC and a robotic pioneer and my radiologist - David Byun Weil/MSK) and... QOL (quality of life) is a factor. Literally each said: quality of life is very important. have often considered that living and being alive are 2 distinct states of being. I enjoy my sweets and I imbibe in both of the above in moderation.

64 years old. Gleason 7 in two tumors with cribriform. Gleason 6 in four tumors. Bilateral. Decipher .72 (too high for anyone). Treatment: SBRT over 10 days and 120 days of Orgovyx. My physicians/oncologist advised: treatment = surgery vs. radiation was equipoise (their term). Confirmed at Smilow (Yale) and MSK (NY). I opted for radiation and am coming to the end of my treatment with 10 days of Orgovyx remaining. Peaks and valleys all the way along. It's winter here in New England and skiing and hiking has been outstanding. Life is different than living. I'll have a beer around the campfire at Stowe this afternoon....

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Profile picture for asolidrock @asolidrock

I contend that it's in our makeup. I've seen way overweight people (no criticism) have perfect bp sugar level cholesterol etc. I've seen super thin people have to be on insulin. It's how God created everyone individually.

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@asolidrock Type 1 diabetes (the kind that usually starts in childhood or adolesence) is almost entirely genetic, as far as I understand; it's only type 2 (the kind that usually starts in middle or old age) that has a strong correlation — not 100%, of course — with obesity, inactivity, and extreme sugar consumption. Of course, genes play a role as well.

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I asked my UCI surgeon Dr Ahlering that very question about sugar in November 2025 and he said not so much sugar, but prostate cancer cells have ”expressed” insulin receptors and respond to insulin changes so it is an indirect relationship to sugar/carbs. It also raises questions about the effect of diabetes on prostate cancer and its progression.
He stated that some folks are doing an 8/16 fasting diet (fast 16 hrs) to minimize carbs and insulin response however the science behind it is iffy.

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Here’s an interesting WaPo article today authored by an oncologist. The part about sugar is towards the end. It begins with, “ Sugar does not directly fuel cancer growth. This is a myth.”
https://www.washingtonpost.com/wellness/2026/02/16/diet-cancer-risk/

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Profile picture for heavyphil @heavyphil

@kjacko I know…my mother was a school aid for years. The untouched food and milk they had to dump in the garbage every day because of state rules was criminal.
She brought home a dozen pint sized containers of milk on more than one occasion because she and the other aids couldn’t stand throwing it all away. And she probably would have been fired if found out.
But did she ever come home with Cheetos, french fries or sweetened juice drinks? NEVER…
Phil

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@heavyphil Sad but true.

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