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They get both through the blood supply

These subjective reports are impossible to verify without controlled trials

Cell 169 , 132147.e16 (2017)

Urgent situations requiring immediate medical attention include: Severe, persistent abdominal pain (with or without vomiting), which may indicate pancreatitis Signs of gallbladder disease (right upper quadrant pain, nausea) Persistent vomiting leading to inability to keep fluids down or signs of dehydration Specific situations requiring consultation include: Persistent gastrointestinal symptoms (nausea, vomiting, diarrhea) lasting beyond the initial adjustment period Unintended weight loss exceeding clinical targets or occurring too rapidly Signs of nutritional deficiency such as fatigue, weakness, hair loss, brittle nails, or neurological symptoms Difficulty meeting protein or caloric needs through diet alone Consideration of high-dose supplements or specialized nutritional products Use of multiple supplements or herbal products with potential interactions Need for medication adjustments if also taking insulin or sulfonylureas to prevent hypoglycemia Patients who are pregnant, planning pregnancy, or breastfeeding should discuss all medications and supplements with their healthcare provider, as certain products may be contraindicated