Subjects were excluded from l-carnitine or BB challenge testing if they were pregnant, had chronic illness (including a known history of heart failure, renal failure, pulmonary disease, gastrointestinal disorders, or hematologic diseases), had an active infection, received antibiotics within 2 months of study enrollment, used any over-the-counter or prescription probiotic or bowel-cleansing preparation within the past 2 months, ingested yogurt within the past 7 days, or had undergone bariatric or other intestinal (e.g., bowel resection/reconstruction) surgery
Seniors should think about their own needs, like what medicines they take and what they can eat
Others want support for recovery, wellness, or healthy aging
The average dose of a supplement is anywhere between 1-2 grams, so if you take fish oil, your body will need to metabolize those calories