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Comment by dmix | Hacker News Reader

The fact fish oil and vitamin d have been touted for couple decades as helping prevent cancer?

I remember both my parents taking both regularly growing up in the 90s and they both separately mentioned cancer prevention as the big reasons.

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I’m a big believer in fish oil. In my late 30s I experienced a consistent feeling of unwell ness and what I describe as “brain fog” so badly and consistently I went to the dr about it. Turned I had high blood pressure and high cholesterol. Dr wanted me to modify my diet and if it didn’t improve he wanted to put me on statins(!)

Fish has never been part of my diet. Started using fish oil, eating Cheerios, vitamins and some excercise. Started makeung a point to include seafood 2 times a week. Long story short, 6 months later all my numbers were in line.

The most striking thing I recalled from this was the fish oil, brain fog went away, I felt a great deal more mental acuity.

Fast forward to today; that was all 8 years ago, in the interim I stopped all that and the brain fog and unwell ness are back. I started fish oil again, and the effect was immediate. I even remarked to my wife how much better I felt.

That’s all anecdotal, and probably placebo effect anyway, ymmv.

As for the statins... Doc said we had to treat my high cholesterol and triglycerides. I was very reluctant to take statins so she said "OK try red yeast rice for 3 months but if it doesn't improve you're gonna have to take statins". OK. My cholesterol 320->220. My triglycerides 300+ -> 115. It turns out that lovastatin was identified as one of the key molecules in the ancient Chinese remedy.

So that's my one data point, and the only one relevant to me regarding statins.

It's not at all surprising that red yeast rice would be as effective as a prescription drug in lowering triglycerides. In fact, "Some red yeast rice products contain large amounts of monacolin K, which is chemically identical to the active ingredient in the cholesterol-lowering drug lovastatin." (from https://nccih.nih.gov/health/redyeastrice)

It seems statins have serious side effects such as nerve damage, so perhaps you should go with the exact dosage prescribed by a doctor instead of taking an unknown quantity of the same drug from natural sources.

I got the muscle aches that can come from statins. Lowered my dose and they went away. Thing is, the doc never saw anyone achieve the results I did with the prescription stuff. No need to support a broken patent system and get a doctor and pharma company involved.

What part do you think Cheerios played in this?

Cheerios are advertise to reduce cholestol, there are studies to support the claim, whatever that’s worth.

The most striking thing I recalled from this was the fish oil, brain fog went away, I felt a great deal more mental acuity.

How much fish oil do you take?

Krill oil 300 mg once a day.

I have honestly never heard fish oil mentioned as a way to reduce cancer. I guess a lot of people have been taking/hyping it for that, but I've always only heard of it as a means of lowering your risk of heart problems. (And it sounds like the results of this study are that it dramatically lowers the risk of heart attack, as much or more as any prescription medication, so I agree with other commenters who say it's weird to describe this study as showing "disappointing" results for fish oil and heart disease.)

"Touted" based on what? There isn't much good evidence linking fish oil to cancer.

https://examine.com/supplements/fish-oil/

But there's very good evidence that shows fish oil has benefits for triglycerides and cholesterol, which is consistent with the results of this study re: heart attacks.

Even until recently I still see studies consistent with this idea (o-3 & cancer)

https://medicalxpress.com/news/2018-01-omega-3s-fish-flax-ca...

Wasn't fish oil recently linked to advanced prostate cancer? (people with prostate cancer had elevated DHA in a big study -- whether that's caused by fish oil consumption is unknown, but still something to consider.)

Isn't a risk reduction the same as helping prevent?

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