Browse evidence-based analysis of health-related claims and assertions
People with constipation who ate no fiber stopped straining to poop, while everyone who kept eating fiber still had to strain hard.
Correlational
Everyone with constipation who ate a lot of fiber felt bloated—those who cut back felt bloated less often, and those who stopped fiber entirely didn’t feel bloated at all.
Only people who stopped all fiber felt less stomach pain—those who just cut back or kept eating fiber still had the same pain after six months.
People with constipation who stopped eating fiber completely stopped having blood in their stool, while those who kept eating fiber still had bleeding.
People with chronic constipation who kept eating lots of fiber (like whole grains and veggies) for six months didn’t see any improvement—they still pooped rarely and felt bloated and strained.
People with chronic constipation who cut back on fiber (but didn’t eliminate it) started pooping almost daily and felt less strain and bloating after six months.
For people who have trouble pooping and feel bloated, stopping all fiber-rich foods like veggies, fruits, and whole grains for six months helped them poop daily, stop straining, and feel less bloated.
This compound helps eye cells fight stress for a few hours, but after a full day, it stops working—so it won’t help if the damage lasts too long.
Quantitative
When eye cells are starved of oxygen and sugar, their natural defense system weakens—but this compound can help restore part of it, at least in the first few hours.
Mechanistic
Cutting off oxygen and sugar from eye cells for 6 hours kills more than 40% of them—making it a reliable lab way to mimic stroke-like damage.
A plant-derived chemical from a South American tree shows promise in protecting eye cells from oxygen-starvation damage, hinting it might help with brain injuries too.
Descriptive
This compound only works if you give it at just the right amount—too little or too much doesn’t help, so getting the dose exactly right is super important.
If you give too much of this compound, it starts killing eye cells instead of helping them—typical of many natural substances that have a narrow safe range.
This compound can help eye cells survive short-term oxygen loss, but loses its power if the stress lasts too long.
This compound works best at one very specific dose—too little does nothing, too much hurts—and scientists can predict this pattern very accurately with math.
This compound helps eye cells make more of a natural 'clean-up' enzyme that fights harmful chemicals, but only if given early after stress begins.
At the right dose, this compound can reduce harmful stress molecules in eye cells—but only if given right after the stress starts, not later.
A natural compound called Brosimine B helps retinal cells survive better at a very specific low dose, but hurts them if you give too much.
Maximum human lifespan potential is approximately 120 years, yet average lifespan in optimal dietary environments remains significantly lower, suggesting non-dietary factors limit longevity.
Assertion
Improvements in health biomarkers following increased vegetable intake are confounded by concomitant reduction in processed food consumption.
Consumption of modern, selectively bred fruits and vegetables is associated with improved health outcomes in human populations.
The hypothesis that low-dose plant-derived phytochemicals confer health benefits via antioxidant or hormetic mechanisms lacks empirical validation in human studies.
Complete elimination of dietary fiber from plant sources can resolve symptoms of chronic constipation, including infrequent bowel movements, bloating, straining, abdominal pain, and anal bleeding.
Lectins are plant-derived proteins that can translocate across the intestinal barrier, bind to mammalian tissues, and trigger inflammatory or autoimmune responses in susceptible individuals.