In a paper published in Frontiers in Sustainable Food Systems, Dr. Chris Macdonald explored the best sources of protein currently available.
To answer the question, Macdonald had to build a new holistic scoring system that combines measures of environmental impact, health, affordability and availability into a single framework.
Applying the scoring system to 20 commonly consumed protein-rich foods, the analysis found a striking pattern: every product in the highest-scoring quintile was plant-based, while every product in the lowest-scoring quintile was animal-based. Tofu ranked first overall, while cheddar cheese ranked last.
The paper argues that many existing food rating systems focus on only one aspect of a product. While useful, these single-dimension labels can obscure important trade-offs and make it difficult to compare foods comprehensively.
TOFU DOMINATION
Link to open access article https://www.frontiersin.org/journals/sustainable-food-systems/articles/10.3389/fsufs.2026.1677796/full
Are there any health issues linked to a lack of fibre?
Colon cancer.
That is probably the most serious. Other things that are more likely when you don't get enough fibre with your food:
Feel hungry sooner
Increased blood sugar fluctuations
Piles due to increased straining to poop
Constipation
Abdominal cramps and bloating
Weight gain
The last meta study I saw saw that over all health comes were better for people with a majority fiber diet over both majority protein and majority carbohydrate diets.
Personally it's the fact that I can be full faster but with less total calories.
Link please!
Also if thst is true, is there such thing as a majority fiber diet that a person could bulk with? Id be thjnking its impossible since the majority of fibre is indigestible by the human body. Though I could he wrong of course as Im not an expert on the matter.
Diverticulitis