Protein powder supplementation guidelines

PROTEIN POWDERS: MEDICAL DO’S and DON’T’s Do’s * Do treat protein powder as a supplement, not a meal replacement (unless advised by your doctor). Aim for whole-food protein first. * Do check your personal protein target (common range: ~1.0–1.6 g/kg/day for many active adults; higher needs in older adults or during weight loss if kidney function is normal). * Do choose third-party tested products (look for NSF Certified for Sport, Informed Choice/Informed Sport, or USP Verified) to reduce contamination/adulteration risk. * Do read the label carefully: * Protein per serving (typically 20–30 g per scoop) * Added sugar (lower is better) * Calories and serving size * Vitamin/mineral “mega-doses” (can be excessive if you also take a multivitamin) * Do match type to your tolerance/goals: * Whey isolate: lower lactose, often easiest on stomach * Casein: slower digestion (often used at night) * Plant blends (pea/rice): good lactose-free option; look for leucine/EAA content or a blend * Do spread protein across the day (many people do better with ~25–40 g per meal, depending on size/age). * Do hydrate well and include fiber/whole foods (constipation and GI issues are common when powders replace real meals). * Do be extra cautious if you’re pregnant/breastfeeding—choose reputable, tested products and avoid “herbal” add-ons. Don’ts * Don’t use protein powders if you have significant kidney disease (or are unsure)—talk to your clinician first; high protein can be unsafe in advanced CKD. * Don’t assume “natural” or “herbal added” powders are safer. Many “testosterone boosters,” fat burners, and Ayurvedic blends can cause liver injury or interact with medications. * Don’t exceed your needs “because it’s protein.” Too much can worsen reflux, GI symptoms, and displace nutritious foods; it can also add hidden calories. * Don’t use powders as your main strategy for weight loss—they can be helpful, but long-term success is mostly food quality, satiety, resistance training, and sleep. * Don’t ignore symptoms: stop and reassess if you develop persistent bloating/diarrhea, rash, wheeze, acne flare, or swelling. * Don’t give high-protein supplements to children/teens routinely unless advised (needs differ; risk of excess calories and additives). * Don’t rely on powders if you’re on certain meds without checking: * Warfarin: some products have vitamin K or botanicals that affect INR * Thyroid meds/iron: take separately from supplements (can impair absorption) * Diabetes meds: shakes can alter glucose patterns—monitor Red flags that should make you stay away from a product * “Proprietary blend” without exact amounts * Claims like “steroid-like,” “rapid shredding,” “testosterone booster” * No third-party testing + very cheap price * Lots of added stimulants, “pre-workout,” or multiple herbs