Free AI Nutritionist - Meal Plans Built for Your Goals

High in olive oil, fish, vegetables, legumes, whole grains, and moderate red wine. Consistently associated with reduced cardiovascular disease risk, lower all-cause mortality, and cognitive health in large population studies. The PREDIMED trial showed a 30% reduction in major cardiovascular events vs. a low-fat control diet.

Who should avoid it: Those with specific fat metabolism disorders (rare). Otherwise broadly suitable and sustainable long-term.

Dietary Approaches to Stop Hypertension - Specifically designed to reduce blood pressure. High in fruits, vegetables, low-fat dairy, lean protein, and whole grains. Limits sodium, red meat, and added sugars. Clinical trials show it can lower systolic blood pressure by 8-14 mmHg, comparable to some medications.

Who should consider it: Anyone with elevated blood pressure or a family history of hypertension. Also appropriate for chronic kidney disease (modified DASH with lower potassium in advanced stages).

Restricts carbohydrates to under 50g/day (keto) or 50-150g/day (general low-carb), forcing fat as primary fuel. Highly effective for rapid initial weight loss, blood sugar management in type 2 diabetes, and reducing triglycerides. Produces the largest initial weight loss of any diet in short-term trials.

Who should avoid it: People with type 1 diabetes (risk of ketoacidosis), those on certain medications (SGLT2 inhibitors), and anyone who finds it clinically unsustainable. Long-term adherence rates are lower than Mediterranean diet.

Emphasizes whole plant foods - Vegetables, legumes, whole grains, nuts, seeds - While limiting or eliminating animal products. Associated with lower rates of heart disease, type 2 diabetes, and certain cancers. Requires deliberate attention to B12 (supplement required), iron, zinc, calcium, and omega-3 fatty acids.

Important: "Plant-based" does not mean inherently healthy - Highly processed vegan foods can be nutritionally poor. Focus on whole, minimally processed plants.

Restricts eating to an 8-hour window (e.g., noon to 8pm) and fasts for 16 hours. Works primarily by reducing total calorie intake - Not through any metabolic "fasting magic." Clinical research shows similar weight loss results to continuous calorie restriction when calorie intake is matched.

Who should avoid it: Individuals with a history of eating disorders, pregnant or breastfeeding women, people with type 1 diabetes or on insulin, and those who find skipping breakfast increases bingeing at night.

Q: I want to lose 20 lbs in 3 months without losing muscle. Is that realistic and how should I eat?

A: Losing 20 lbs in 3 months means roughly 1.7 lbs/week, which is at the upper limit of sustainable fat loss without significant muscle loss. It's achievable but requires discipline. The key levers: (1) Calorie deficit of 600-700 calories/day, achieved mostly through food reduction rather than exercise. (2) High protein intake - 0.8-1g per pound of bodyweight daily - is the single most important factor for muscle preservation in a deficit. At 180 lbs that's 144-180g of protein daily. (3) Resistance training 3x/week signals to your body to retain muscle even while losing weight. (4) Avoid crash dieting below 1,400 calories - it accelerates muscle loss and metabolic adaptation. Would you like me to build out a daily macro target and sample meal plan based on your current weight and activity level?

Q: I've heard that seed oils are toxic and I should switch to butter and tallow. Is this true?

A: The "seed oils are toxic" claim circulating on social media is largely overstated. The concern focuses on linoleic acid (omega-6) oxidizing under heat and the omega-6 to omega-3 ratio in the modern diet. What the research actually shows: seed oils used for regular cooking at home are not meaningfully harmful for most people. The real issue is industrial deep-frying where oils are reused at high temperatures for extended periods - that does create harmful oxidation products. For home cooking, extra virgin olive oil (high in stable monounsaturated fat) is an excellent choice. Butter and coconut oil are fine in moderation. Canola and avocado oil are stable at high heat. The bigger dietary picture - total vegetable intake, sugar, processed food consumption - matters far more than which cooking oil you choose.

Q: I'm vegan. How do I make sure I'm getting enough B12, iron, and omega-3s?

A: These are the three nutrients that require the most attention on a vegan diet. B12: supplementation is non-negotiable - there are no reliable plant sources of active B12. Take 250-500mcg daily of cyanocobalamin or methylcobalamin, or a higher weekly dose (2,000mcg once a week). Get blood levels checked annually. Iron: plant-based iron (non-heme) is less bioavailable than animal iron. Eat iron-rich plants (lentils, tofu, pumpkin seeds, fortified cereals) with vitamin C to enhance absorption, and avoid tea/coffee with meals. Women under 50 need 18mg/day; men need 8mg. Get tested - many vegans are fine, but deficiency is common especially in menstruating women. Omega-3: ALA from flaxseeds and walnuts converts poorly to EPA/DHA. Take an algae-based DHA supplement (250-500mg DHA daily) - this is where fish get their omega-3s anyway.

Q: What should I eat before and after a workout to maximize performance and recovery?

A: Pre-workout (1-2 hours before): prioritize carbohydrates for energy with moderate protein and low fat/fiber (which slow digestion). Good options: oatmeal with banana, rice and chicken, or a smoothie with fruit and protein powder. If training within 30-45 minutes, something lighter like a banana or dates works well. Post-workout (within 2 hours): protein + carbohydrates is the winning combination. Protein provides amino acids for muscle repair (20-40g is the effective range); carbohydrates restore muscle glycogen. Good options: Greek yogurt with fruit, a protein shake with oat milk, eggs with toast, or salmon with rice. The "anabolic window" is less critical than once thought - if you've eaten adequately before training, the timing pressure post-workout is low. But if you trained fasted, get a protein-carb meal in within 45-60 minutes.