06/23/2026
Lab Marker of the Week: Alkaline Phosphatase (ALP)
Most practitioners recognize elevated Alkaline Phosphatase (ALP) as a potential indicator of liver or bone disorders. However, ALP can provide valuable nutritional and metabolic insights long before it reaches conventional abnormal ranges.
ALP is an enzyme found primarily in the liver, bones, kidneys, and digestive tract. It plays a critical role in bone formation, tissue repair, and mineral metabolism.
Why It Matters
Low ALP levels are often overlooked but may be associated with:
Zinc deficiency
Protein deficiency or malabsorption
Poor digestive function
Hypothyroidism
Impaired bone metabolism
Elevated ALP levels may suggest:
Increased bone turnover
Liver or biliary stress
Gallbladder dysfunction
Healing fractures or active bone remodeling
Clinical Insight
At SBN, we evaluate ALP within the context of the entire patient picture. not as an isolated marker. When combined with other laboratory findings, symptom surveys, dietary habits, and patient history, ALP can help uncover underlying nutritional deficiencies and metabolic imbalances that may otherwise be missed.
Optimal vs. Normal
A patient may fall within the laboratory's "normal" reference range while still showing patterns suggestive of nutritional insufficiencies or metabolic stress. This is why comprehensive analysis is essential.
Remember: Laboratory markers rarely tell the whole story alone. The true value comes from understanding how each marker interacts with the patient's complete clinical picture.