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About brendanhill

  • Birthday 02/01/1985

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  1. For a while now I have reduced my intake of grains like bread, pasta, rice etc. It seems preferable to substitute something else with superior nutritional-to-calorie ratio, eg. for me, a good pasta sauce with a base of steamed leafy greens is equally enjoyable to a base of actual pasta. Similarly for sandwiches, or curries with a base of rice etc. What nutritional role do you see for various grains, if any?
  2. brendanhill

    Heard of Longecity?

    I was recently introduced to a movement called Longecity: www.longecity.org It seem to promote similiar goals to the CR society but with more of a technological, futuristic slant, advocating research into interventions to reverse ageing and potentially live forever. Have you heard of this group before or become familiar with their materials? Brendan
  3. brendanhill

    Is a bone density test worth the $$?

    Thanks for the feedback Dean. In which circumstances would you increase, lower or eliminate your calcium supplementation? Also, in general, how much $ per year do you spend out of pocket to measure your biomarkers? (which seem pretty extensive from your blood tests spreadsheet) Brendan
  4. brendanhill

    Is a bone density test worth the $$?

    Having crunched the numbers on my ovo-vegetarian calcium sources recently, I roughly estimate I have been getting < ~60% RDI, and I have been doing minimal weight bearing exercise. I read material (eg. https://www.crsociety.org/topic/11299-calcium-bone-health-fracture-risk) that calcium supplementation does not have a significant effect on bone health. Furthermore I am hesitant to supplement anything long term which I can't measure ("can't manage what you can't measure!!!1!"), and a yearly bone density test would leave me out of pocket ~$250 AUD p/a. That's affordable for me, but potentially a waste of money if the test does not inform my decision to supplement. I am interested in opinions on: - Is the bone density test worthwhile? - If it revealed any issues, would supplementation be a part of the solution worthwhile? - In general, how much do you spend (non-rebate) on medical tests each year to monitor your health? Alternatively: would it be prudent to ignore supplementing, RDI, and the bone density test, and simply increase my intake of plant based calcium sources + weight bearing exercise? Brendan
  5. brendanhill

    Growing Sprouts - Including Broccoli Sprouts

    I've also grown a variety of sprouts over the years including mung beans, fenugreek, broccoli, lentils and wheatgrass, using a bioSnacky unit: http://www.superdiscountsupplements.com.au/a.vogel-biosnacky-mini-greenhouse-sprouter/?gclid=CMnd56mzkcoCFVYGvAodZBIDJg However I found it difficult to locate nutritional breakdowns for most specific types of sprouts. Do you have sources for nutritional data for the sprouts you grow and do you factor them in to your daily nutrition counts? Or are they so low in calories that you can basically eat them for free?
  6. Yes, I summarize the arguments for veganism as ethics, then health, then environment. But I find arguing the environmental angle is difficult because everyone seems to have read whatever the most recent "quinoa/lettuce/tofu is bad for the environment/farmer conditions/something emotive" article which muddies the waters. Having read through your clarification about your B12 strategy (thanks!) it seems as though like having met the B12 daily requirements, you are now optimizing on the basis of cost. I'm not sure for the sake of cents per day that I would bother splitting pills unnecessary - but I admire your dedication to the "O" in "CRON" :D
  7. Wow interesting. I wonder what attracts vegans to the diet? For me, the ethics of animal treatment and my selfish concerns about longevity and wellbeing are entirely unrelated. Dean can I challenge your strategy in one area. Reading through your analysis of your supplementation strategy suggests to me that you are placing a great deal of weight on precise evaluations of vitamin levels eg. to the point of splitting pills into 6ths to get a precise amount. Similarly I have read tales of others who count out specific numbers of nuts or even fractions thereof. This is exactly the kind of precision I feel I would never have confidence in, for the reasons of variability & uncertainty I described above. What, then, is your motivation for this level of precision in your supplementation strategy?
  8. brendanhill

    Does anyone successfully adhere to a CR ovo-vegetarian diet?

    Thank you very much for the responses!
  9. My introduction to CRON diet has been watching Michael Mosley's documentary, reading the Longevity Diet, and perusing these forums and the web. I see a lot of number crunching about vitamins and calories and attempts to optimize these numbers. Yet the more I read, the more variability and uncertainty I see in these numbers: - Different bodies requiring different vitamins (how could a single RDI possibly fit all?) - Different medical conditions weighting the numbers - Bioavailability of vitamins varying across food sources - Absorption of vitamins affected by food combinations - Vitamin content of a particular food varying across different crops, growing conditions, seasons etc - Nutritional knowledge changing over time You might say, "Yes, but these numbers are the best thing we currently have to work with". Unfortunately, the degree of variability and uncertainty makes me hesitant to spend any significant time analysing and optimizing as I would have little confidence in the results. Furthermore, there seems to be a giant web of causal interrelations between hundreds of cryptically named micronutrients, forming a giant puzzle which I will never fully unpack and hence hesitant to even explore. Instead, in the face of this uncertainty, it seems sensible to me to adopt a simpler strategy: 1) Establish a ~6 monthly biomarker testing framework 2) List the major vitamins to consider, hope the remaining obscure vitamins are encompassed by the new regime 3) Identify which foods have the highest bioavailable content/calorie ratio for each major vitamin (traffic light system?) - eat quite a lot of those (exact numbers be damned) 4) Supplement in areas I have a hunch I'll struggle with 5) Review biomarkers each 6 months, adjust foods or supplements accordingly I would appreciate your commentary on the above, and also to hear your perspectives regarding the sources of variability and uncertainty in the numbers, and whether attempting to optimize over such uncertainty is worthwhile. Regards, -Brendan
  10. brendanhill

    Why do nutrient database not factor in bioavailability?

    Thanks Dean, I discovered your posts shortly after posting and I appreciate the time you've taken to lay out your own plan. It will be a helpful reference for me. Regards, -Brendan P.S. The little one on my shoulders is now 3 and in a couple of weeks will have a baby brother. How time flies.
  11. I was compiling some data about vegan sources of calcium and thought I had formed a reasonable spreadsheet. Then I came across the following page, describing how variable the bioavailability of calcium across various sources really is: http://plenteousveg.com/vegan-sources-calcium/ For example, without factoring in bioavailability we would think that 1 cup of Chinese cabbage would meet ~70% of our calcium requirements. When factoring in bioavailability, it is closer to ~20%. Conversely, a cup of collard greens go from ~27% to ~50%. These are significant differences when trying to formulate a nutritionally complete diet and yet all nutrition databases I have seen online seem to ignore this difference. Is the description of calcium bioavailability in the link above accurate? If so, is there any point using standard online nutrition databases to evaluate calcium sources? Is this degree of variability in bioavailability across various sources the case for many other vitamins eg. B12, iron etc? Regards, -Brendan
  12. Aside from locally sourced eggs, I adhere to a vegan diet. I would like to start practising CR principles and I would like to know others who have successfully practised it in a vegan or ovo-vegetarian way. Specifically from vegans/ovo-vegetarians I would like to know: - What if anything do you supplement? - How do you form confidence with your B12, iron and calcium intake? From everyone I would like to know: - Do you accept the mainstream RDI's for vitamins as given? Alternatively how do you justify different RDI's? Regards, -Brendan