PS ProSupps Amino Linx BCAA/EAA Matrix Watermelon

Our assessment

The evidence shows that this product contains calcium, a mineral with a well-established role in bone health. However, the data on calcium supplementation is nuanced. While calcium supports bone density and neuromuscular relaxation, some research suggests that high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. For a general audience, your first step should be assessing your total calcium intake from food and any other supplements before adding more.

How it works

Think of calcium as a structural building block for your skeleton and a cellular messenger for your nerves and muscles. It supports bone mineralization, helping to deposit minerals into your bone matrix for density. It also plays a key role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].

Safety profile

Data not available for this specific product's side effects. The FDA has received a total of 592,059 adverse event reports across all dietary supplements, but specific counts for this product are not provided [FDA data]. For calcium generally, safety concerns include that high calcium intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in the blood and urine 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].

Our recommendation

Start by checking your daily calcium intake from food sources like dairy, leafy greens, and fortified foods. If you take a calcium supplement, be aware it can reduce the absorption of several medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Because the data on high calcium intakes includes potential risks for heart disease and prostate cancer, it is wise to not exceed the established tolerable upper intake level without medical guidance [NIH ODS].

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