N by Nutrilite Slay the Day Tangerine Lemon

Our assessment

The evidence shows that N by Nutrilite Slay the Day Tangerine Lemon contains Calcium, a mineral essential for bone health and nerve function. However, the data available is limited to this single ingredient, and we cannot assess the full formula. For calcium specifically, the data is clear: it supports bone mineralization and neuromuscular relaxation [NIH ODS].

How it works

Think of calcium as a key building block for your skeleton and a messenger for your nerves and muscles. It works by supporting bone density and mineral deposition, and it helps your muscles relax and your nerves send signals properly [NIH ODS].

Safety profile

Safety data for this specific product is not available. However, for calcium the data shows that high intakes might increase the risk of heart disease and prostate cancer. High blood and urine levels of calcium can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. The FDA has received a total of 592,059 adverse event reports across all supplement products [FDA data].

Our recommendation

Before taking this product, you should be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Because the data for this specific product is incomplete, we recommend consulting with your healthcare provider to determine if you need a calcium supplement and to discuss the full ingredient list on the label.

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide