Improving sleep, relieving fatigue, and helping to lower blood lipids - these effects can be evaluated based on both subjective feelings and objective indicators.

If calcium, vitamin D, iron, etc., need to be supplemented, this can be determined through physical examination indicators. If the indicators do not change, it may be due to "insufficient dosage" or "poor absorption," requiring adjustment of the supplementation plan.

Not everyone needs it. The following specific groups may need to consider supplementing under the guidance of a doctor or nutritionist: people who are clearly deficient in a certain nutrient, people in specific physiological stages (people in special physiological stages, women preparing for pregnancy and in the early stages of pregnancy, pregnant women and breastfeeding mothers, infants and young children), people with specific dietary restrictions (strict vegetarians, lactose intolerant individuals or those with insufficient dairy intake), and those with certain chronic diseases that affect nutrient absorption.