Alzheimer's study shows ketone bodies help clear misfolded proteins
New research suggesting that ketone bodies may help clear misfolded proteins linked to Alzheimer’s prompts debate over whether fasting, ketogenic diets, or ketone supplements could meaningfully reduce dementia risk or improve cognition. Commenters weigh the feasibility, safety, and sustainability of ketosis-inducing strategies—from intermittent and multi‑day fasts to long-term keto—against genetic and metabolic factors and a generally inconclusive evidence base. The thread also delves into lived experiences of Alzheimer’s, highlighting the heavy burden on families, the uncertainty about how much patients suffer, and broader questions about whether current research is even targeting the right mechanisms.
Mechanism and Findings Discussed
- Study suggests ketone bodies may help clear misfolded proteins and improve proteostasis in aging and Alzheimer’s brains.
- Commenters highlight that the animal work used ketone esters, implying a potential “drug-like” route rather than relying solely on diet/fasting.
- Cited early human studies where ketogenic compounds improved cognitive scores in mild–moderate Alzheimer’s, but details and effect size are not deeply discussed.
- Exogenous ketones (e.g., BHB salts) are mentioned as a possible way to raise ketones without strict diets; some users report cognitive benefits (e.g., for “brain fog”), but this is purely anecdotal.
Fasting, Ketosis, and Practical Questions
- Strong interest in whether fasting can prevent/reduce Alzheimer’s risk and what schedule matters: daily 14–18h, 24–48h fasts, or multi‑day fasts.
- Disagreement on how long it takes to produce ketones: some say “multi-day,” others claim nightly ketone production if evening eating is avoided or carbs are restricted.
- Debate over whether intermittent fasting during Ramadan is enough; concerns that typical patterns (daytime fast, evening carb loading) may not induce ketosis.
Keto Diet: Experiences, Benefits, Risks
- Many report improved focus, reduced hunger, anti‑inflammatory effects, and easier long‑term adherence than moderate-carb dieting.
- Others find keto unsustainable socially or ethically (e.g., issues with meat sourcing) or psychologically (worsened mood, depression).
- Short-term “keto flu” and temporary cognitive fuzziness are commonly reported.
- Some long‑term users report worrying lab results, panic attacks, or problems potentially related to nutrient/omega‑6 imbalance, prompting caution about extreme or poorly planned keto.
- Emphasis from some that electrolyte and micronutrient supplementation is necessary.
Alzheimer’s Etiology and Alternative Hypotheses
- Several commenters frame Alzheimer’s as possibly linked to metabolic dysfunction (“type 3 diabetes”), insulin dysregulation, lipids, inflammation, or infections.
- Mentions of associations with GLP‑1 drugs, nicotine, appetite suppressants, and even BCG vaccination, but all as tentative, competing hypotheses.
- Significant skepticism about decades of amyloid‑centric research and known fraud, with concern the field may have chased the wrong target.
Patient Experience, Suffering, and Ethics
- Intense debate on whether people with advanced Alzheimer’s “don’t suffer” versus being unable to communicate significant distress.
- Multiple anecdotes of fear, confusion, panic attacks, attempts to “go home,” and unrecognized pain (e.g., untreated infections), suggesting suffering can be substantial.
- Others report patients who appear content, joking, or unaware; caregivers stress variability and the importance of vigilance for nonverbal signs of pain.
- Some see Alzheimer’s as a strong argument for assisted dying, given the prolonged decline and impact on families.
Meta: Research Access and Discussion Quality
- Mixed views on Hacker News as a venue: some see it as one of the few usable lay forums; others recommend going straight to journals and tools like PubMed RSS.
- Complaints about paywalls, difficulty interpreting primary literature, and limited access to knowledgeable clinicians for nuanced prevention discussions.