⚖️ Diet pH: Acidification and Alkalizing the Body — Truth vs Pseudoscience
"Alkalizing" foods are trendy. But does it work as promised?
The idea of an "alkaline" diet is popular but often exaggerated. Let's look at what nutrition can really do and what is marketing.
What is pH
pH is a measure of acidity. The scale runs from 0 (acidic) to 14 (alkaline), with 7 being neutral.
- Measure of acidity.
- Scale 0–14.
- 7 — neutral.
- Different body fluids.
Blood pH
Blood pH is tightly held around 7.4. Diet barely changes it — otherwise we wouldn't survive.
- Blood ~7.4.
- Tightly held.
- Diet has little effect.
- Stability matters.
Truth
Diet affects urine pH and the kidneys' acid load. Vegetables and fruit reduce it — this is real.
- Affects urine pH.
- Kidney acid load.
- Vegetables reduce.
- Truth.
Myths
The myth is that "alkalizing" cures disease and changes blood pH. It's an exaggeration. The body holds its own pH.
- "Cures disease" — myth.
- "Changes blood pH" — myth.
- Body holds its own.
- Marketing.
Food sources
| Type | Food | Effect |
|---|---|---|
| Vegetables | Broccoli | Reduces load |
| Fruit | Lemon | Reduces load |
| Protein | Meat | Acid load |
| Grains | Grain | Moderate |
Practice
- More vegetables and fruit.
- Moderate protein.
- Don't believe in "alkalizing."
- Don't replace treatment.
- Drink water.
- Consult a doctor.
What is pH?
A measure of acidity, scale from 0 to 14.
Can food change blood pH?
Barely, the body holds it itself.
What does diet really affect?
Urine pH and kidney acid load.
Do "alkalizing" foods cure?
It's an exaggeration, not a replacement.
Does lemon alkalize?
Metabolically yes, but it's acidic in the mouth.
Does meat acidify?
It gives acid load, but that's normal.
What to eat for health?
Vegetables, fruit, whole foods.
Is it dangerous?
The diet is safe; skipping treatment is risky.
Are supplements needed?
Usually not.
When is a doctor needed?
With kidney and metabolic diseases.