Nordic Naturals Complete Omega Lemon

Our assessment

The evidence shows that Nordic Naturals Complete Omega Lemon is a fish oil supplement, but the data provided does not list specific ingredient amounts for this product. Data for calcium, a different ingredient, shows it supports bone mineralization and neuromuscular relaxation [NIH ODS]. You should not rely on this supplement as a primary source of calcium, as the data for that mineral is separate.

How it works

Based on the data for calcium, that ingredient works through two key mechanisms: it supports bone mineralization by helping deposit minerals into bone density, and it aids neuromuscular relaxation by supporting muscle relaxation and nerve signaling [NIH ODS]. This information does not apply directly to the omega-3s in your product, as the data for the specific ingredients in Nordic Naturals Complete Omega Lemon is not available.

Safety profile

The FDA has received a total of 592,059 adverse event reports across all supplements [FDA data]. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. 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

Data not available for a specific recommendation on Nordic Naturals Complete Omega Lemon. If you are taking this supplement for omega-3s, be aware that the safety and interaction data provided here applies to calcium, not fish oil. For calcium interactions, the data shows it can reduce absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Speak with your pharmacist or doctor to check for any potential interactions with your current medications.

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