All about fruitarianism with a long-term fruitarian, Lena

climate

Climate is the statistics of weather. It is measured by assessing the patterns of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time.

  • Climate Change and Food Security

    Climate change further threatens food security through its impact on global food production and consequently on food prices. With growing populations and higher demand for food, the impact of climate change could result in an increase of 20% of people at risk of chronic hunger.

  • Diets, Environmental Sustainability, and Health

    Diets link environmental and human health. Rising incomes and urbanization are driving a global dietary transition in which traditional diets are replaced by diets higher in refined sugars, refined fats, oils and meats. By 2050 these dietary trends, if unchecked, would be a major contributor to an estimated 80% increase in global agricultural greenhouse gas emissions from food production and to global land clearing. Moreover, these dietary shifts are greatly increasing the incidence of type II diabetes, coronary heart disease and other chronic non-communicable diseases that lower global life expectancies. 

    If widely adopted, alternative diets that offer substantial health benefits could reduce global agricultural greenhouse gas emissions, reduce species extinctions, and help prevent diet-related diseases. The implementation of dietary solutions to the tightly linked diet–environment–health trilemma is a global challenge of great environmental and public health importance.

  • Meat Diet and Global Warming

    A typical meat-eater’s diet is responsible for almost twice as much global warming as vegetarian’s and almost triple that of a vegan. The Oxford University study suggested that cutting your meat intake in half could cut your carbon footprint by more than 35%.

  • Significant Ecological Impacts of Livestock Production

    There is no clear evidence that livestock grazing can significantly enhance soil carbon stores. And there is significant research that demonstrates greater carbon storage with no grazing.  Livestock grazing appears to be a questionable strategy for reducing global atmospheric carbon. Climatic conditions year to year, for instance, can shift carbon storage in grazed areas from a positive to a negative. Furthermore, any storage is gradual and takes years to accumulate, while carbon uptake by soils is finite and slows over time. And compared to almost all other ecosystems, arid rangelands are among the least productive ecosystems—hence have little potential for soil carbon storage compared to other ecosystems like forests.

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    One cannot look at the soil carbon storage issue out of context. Livestock are among the greatest source of GHG emissions now—and reducing livestock numbers is the quickest and perhaps the most effective means of significantly altering GHG emissions. Furthermore, there are a host of collateral damages created by livestock production, from the destruction of soil biocrusts, killing of predators, water pollution, clearing of forests for pasture, and so on.

  • UN Urges Global Move to Vegan Diet

    United Nations report 2010: A global shift towards a vegan diet is vital to save the world from hunger, fuel poverty, and the worst impacts of climate change.

    Impacts from agriculture are expected to increase substantially due to population growth increasing consumption of animal products. Unlike fossil fuels, it is difficult to look for alternatives: people have to eat. A substantial reduction of impacts would only be possible with a substantial worldwide diet change, away from animal products.

  • Plant-Based for Longevity and Against Global Warming

    It was estimated that changes towards more plant-based diets in line with the WHO’s global dietary guidelines could reduce global mortality by 6-10%. Food-related greenhouse gas emissions would be cut by more than two thirds.

Carl Sagan

A sharp distinction between humans and “animals” is essential if we are to bend them to our will, make them work for us, wear them, eat them–without any disquieting tinges of guilt or regret. It is unseemly of us, who often behave so unfeeling toward other animals, to contend that only humans can suffer. The behavior of other animals renders such pretensions specious. They are just too much like us.

Protein Digestibility-Corrected Amino Acid Score

The protein digestibility-corrected amino acid score (PDCAAS) has been adopted by FAO/WHO as the preferred method for the measurement of the protein value in human nutrition. 

PDCAAS = Amino Acid Score x Digestibility

The method is based on comparison of the concentration of the first limiting essential amino acid in the test protein with the concentration of that amino acid in a reference (scoring) pattern. This scoring pattern is derived from the essential amino acid requirements of the preschool-age child.

Although the principle of the PDCAAS method has been widely accepted, critical questions have been raised in the scientific community:

  1. the validity of the preschool-age child amino acid requirement values (more than 4 times greater than the EAA requirement for an adult),
  2. the validity of correction for fecal instead of ileal digestibility,
  3. the truncation of PDCAAS values to 100%.

The reference scoring pattern was based on studies performed more than 25 years ago on a limited number of 2-year-old children recovering from malnutrition.

According to the current official recommendations, a 2-year old child needs ~ 3x higher essential-to-non-essential amino acid ratio, and needs essential amino acids in different proportions than adult. Methionine/cysteine is the limiting essential amino acids for adults, and for children it is lysine or tryptophan.

The use of fecal digestibility overestimates the nutritional value of a protein because amino acid nitrogen entering the colon is lost for protein synthesis in the body and is, at least in part, excreted in urine as ammonia.

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