Source Naturals Super Amino Night
Brand: Source Naturals · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that the primary active ingredient in this product is Calcium. For a general audience seeking a nighttime supplement, calcium plays a well-documented role in neuromuscular relaxation, which may support restful sleep. However, the data provided is limited to this single ingredient, and we cannot assess other components of the formula.
How it works
Think of calcium as a key signaling molecule for your muscles and nerves. It supports bone mineralization for skeletal health and promotes neuromuscular relaxation, which helps your muscles unwind at the end of the day [NIH ODS]. This relaxation effect is why calcium is often associated with supporting sleep onset, though it is not a sedative.
Safety profile
The FDA has received a total of 592,059 adverse event reports for all products, though data for this specific product is not available. For calcium specifically, high intakes can increase the risk of heart disease and prostate cancer. Side effects from excessive calcium include constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by assessing your total daily calcium intake from food and other supplements. The RDA for most adults is 1,000-1,200 mg per day, but do not exceed this without medical supervision due to the risks of heart disease and kidney issues [NIH ODS]. If you take thyroid medication or antibiotics, take this supplement at least 4 hours apart from those drugs to avoid absorption problems [NIH ODS]. For sleep support, this product may help if your diet is low in calcium, but it is not a sleep aid.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Source Naturals |
|---|---|
| Serving Size | |
| Contents | 60.0 Capsule(s) |
| Market Status | On Market |
How to Read This 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