Searched on my drive for my old labtestanalyzer notes (2017-18?). Actually considers quite low as optimal:
ALP
Also known as:
Alkaline phosphatase
The total alkaline phosphatase (ALP) test is done to determine all types of ALP in the blood to detect bone and liver disorders.
Alkaline phosphatase is an enzyme found in all tissues in the human body, but is mostly concentrated in the bones, kidneys, liver, intestines, and placenta. It exists in different forms,depending on where it originates [R].
Its major function is to protect your intestinal tract against bacteria, aid in digestion, breakdown fats and some B vitamins, and promote bone formation [R].
The correct balance of ALP is required for healthy functioning, excess or insufficient levels of this enzyme can lead to a broad range of diseases [R]
When the liver is not functioning properly, ALP is released into the bloodstream. Additionally, any condition that affects bone growth or causes the increased activity of bone cells canincrease ALP levels in the blood. For this reason, an ALP level test is commonly used to help diagnose liver/gallbladder disorders and bone disorders [R].
ALP levels also vary with age and gender, with levels higher in children and pregnant women [R].
Higher ALP levels can occur in people with blood group B or blood group O [R].
Range
U/L
Low < 29.99
Optimal 30 - 80
Supra-optimal 80.01 - 130
High > 130.01
Optimal
Your ALP level is optimal!
Based on this marker, you are able to metabolize and absorb the proper nutrients from the food you eat and have strong healthy bones.
ALP in this range is linked to the lowest risk of all-cause mortality [R, R, R, R].
Low
Your ALP levels are below normal.
Low ALP can be caused by:
Malnutrition (protein/calorie deficiency) [R]
Magnesium and/or zinc deficiency [R]
Excess vitamin D intake [R]
Heart surgery (in men) [R]
Underactive thyroid (hypothyroidism) [R]
Anemia (that can be related to vitamin B12 deficiency)[R]
Excess cortisol levels (Cushing’s syndrome) [R]
Copper buildup in the organs (Wilson’s disease) [R]
Hypophosphatasia (a genetic disorder that causes defective bone mineralization) [R, R]
Achondroplasia (a type of dwarfism), and cretinism (a condition with severely stunted growth)[R]
Drugs can also cause low ALP levels:
Cinacalcet (drug that lowers calcium in the blood) [R]
Oral contraceptives [R]
Hormone replacement therapy [R]
Depending on the cause of the low ALP levels, you may experience symptoms like:
Headache, breathlessness, and fatigue (if you have B12 deficiency and anemia) [R]
Weight gain, muscle weakness, and dry skin (if you have hypothyroidism) [R]
Seek medical attention for any underlying condition!
If the low ALP levels are due to a nutritional deficiency, correct the underlying nutritive cause. Eat more foods rich in:
Protein, such as dairy products, meat, poultry, beans, eggs, fish, and nuts and seeds [R]
B vitamins, such as meat, fish, leafy vegetables, beans, grains, dairy products, and eggs [R, R]
Zinc, such as meat and poultry, cereals and cereal products, and milk products [R]
Magnesium, such as green leafy vegetables, fruits, grains, and nuts [R]
Excess vitamin D in your body can cause low ALP levels. Determine the cause and consult with your physician [R].
If your medications are likely to lower ALP levels, discuss alternative options with your doctor [R].
Get your thyroid hormones checked [R].
Moderate to intensive exercise can transiently increase ALP levels [R, R].
Supplements that can help:
Protein [R]
Vitamin B12 (if deficient) [R]
Magnesium (if deficient) [R]
Zinc (if deficient) [R]