Plant fiber is unnecessary for humans
- Laszlo G. Boros
- Jan 29
- 4 min read
Updated: 7 days ago
The consumption of plant fibers is unnecessary, superfluous, and therefore harmful for humans who primarily consume animal meat/offal (like predators) and, in rare cases, have a mixed diet!
Let's calculate (again) based on data from Nature Medicine (2021). It's worth it; even the Creator came up with the same number!
The "profession" that feeds plant fibers recommends a daily consumption of 30-38 (on average 34) grams of soluble and insoluble plant fibers. We don't know why and how, and that's not relevant here, so let's just consider it a magic number and engrave it in our minds!
If we take into account the distribution, mass, and lifespan of all the major cell types in the human body, we get comprehensive data on the rate of cell replacement. The complete replacement of the cells of a 70 kg person means the replacement of 80±20 grams (wet content) of tissue per day. Blood cells and intestinal epithelial cells play a major role in this. In terms of numbers, blood cells account for nearly 86% of our daily (0.33±0.02)e12 (exponent) cell replacement, with the remaining 14% being replaced by intestinal epithelial and muscle cells. Most of the disintegrating and decomposing blood cells return as cell components in the spleen, liver, lymphatic organs, and bone marrow, while intestinal epithelial cells (10%) end up in the feces, i.e., "out in the open."
The destroyed intestinal epithelial cells, together with the bacteria living in the large intestine, produce a mucus-like (mucinous), water-insoluble intestinal content (feces) rich in structural amino acids, such as (OH)-proline and glycocalyx. This is fiber, which is just as soluble and insoluble, as well as indigestible cell membrane and cell component debris, as chewed and saliva-mixed plant fibers. In the absence of absorption, it does not matter what this layer of intestinal mucus consists of!
For the calculations, it is also important to know that due to the different sizes of our cells, ~42% of the total replaceable cell mass is provided by the small intestine (23%), large intestine (17%), and stomach (1.7%) (extended data link https://doi.org/10.1038/s41591-020-01182-9 - Figure 2 | Detailed distribution of cell mass renewal rates of human cells by cell type)
If we take 42% of the daily 80 grams of tissue as a basis (80x42=3360)/100=33.6 grams of fiber, which rounds up to 34 grams. This corresponds to the recommended amount of plant fiber intake. In other words, the Creator has already calculated 34 grams of fiber produced within us.
Furthermore, eating plant fiber is unnecessary, superfluous, and may even be harmful, according to further biochemical calculations: if we take the average fiber content of plants to be 3%, then in order to obtain 34 grams of plant fiber, we would have to consume nearly 1 kilogram of plants per day, along with the proteins, carbohydrates, and toxins they contain, which are foreign to us! Sugar (fructose) derivatives produced by plants also have no place in our diet. Most of plant based ingredients, products, derivates in the 2026- US food pyramid are high in deuterons (1, 2). Their consumption may devastate all deuterium free matrix-water producing ATPase nanomotors, which are fueled by mitochondrial proton tunneling protein architectures (3).
In addition, Methanobrevibacter smithii and Akkermansia muciniphila, which live in the colon, are particularly noteworthy bacteria, as they are involved in the synthesis of short-chain, deuterium-depleted fatty acids during the production of low-deuterium water (4H2+CO2=CH4+2H2O) by the breakdown of mucin produced by intestinal epithelial cells.
It is also important to note that glucose and lactic acid are transported directly from the bloodstream through the capillaries to the large intestine, where butyric acid (butyrate) and propionic acid (propionate) are formed with the help of several bacteria, such as Vellionella (4).
Our intestines therefore transport nutrients in two directions. The small intestine digests and absorbs nutrients, from where the absorbed food molecules circulate in the viscera of the abdominal cavity (splanchnic area) and are exchanged by the colon microbiome for low-deuterium ketone bodies, i.e., butyric and propionic acids. We do not need any plant-based food for the above processes, as the regulation and distribution of intestinal permeability is bidirectional!
All of this has important public health and public welfare implications (5)!
In summary, the daily amount of natural fiber derived from intestinal cells (gastrointestinal epithelial cells) is ~34 grams, which is the magic number that our bodies have known, produced, and utilized from animal products since ancient times. We started this by consuming animal bone marrow, which is high in fat and low in deuterium. This has been an important adaptive advantage for millions of years, compared to other carnivores (6). Natural saturated fats with low deuterium but high energy and metabolic water content are key to protecting human ATPase nanomotors. These are the most powerful and durable proton-driven uniform protein structures for gaining adaptive advantages hidden in biological systems.
Sender, R., Milo, R. The distribution of cellular turnover in the human body. Nat Med 27, 45–48 (2021). https://doi.org/10.1038/s41591-020-01182-9
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