Clinical nutrition and training in New York City.

Nutrition and physical activity affect far more than weight. They can influence metabolic health, cardiovascular health, muscle and bone, sleep, energy, cognition, physical function, and mental health. For example, inadequate nutrition can contribute to fatigue and poor recovery, while regular exercise can support mood, sleep, metabolic health, and physical resilience. At Fountain, nutrition and fitness are therefore considered part of the broader health picture rather than separate lifestyle recommendations.

We do not treat nutrition and exercise as generic advice to “eat better and work out more.” Your needs depend on your metabolism, body composition, medical history, hormones, sleep, medications, mental health, current fitness, and the goals you are trying to achieve. Fountain’s nutrition and fitness care works alongside internal medicine, hormonal care, psychiatry, sleep medicine, and other parts of your treatment when relevant. The goal is for the different specialists to work from the same clinical picture rather than giving you disconnected recommendations. Your plan is then adjusted based on how your body is actually responding.

There is no single diet that is right for everyone. Your nutrition plan should reflect your energy needs, body-composition goals, activity level, medical history, food preferences, and ability to follow it consistently. Depending on your goals, we may look at protein, carbohydrates, fats, fiber, micronutrients, meal timing, hydration, and total energy intake. The objective is not simply to restrict food, but to give your body what it needs to support energy, metabolic health, training, recovery, and the results you are working toward.

Protein needs vary based on body size, age, activity level, overall health, calorie intake, and whether your goal is fat loss, muscle gain, maintenance, or recovery. Someone who is resistance training or actively losing weight may require a different protein target than someone who is less active. Rather than using one number for everyone, your nutrition team can establish a target based on your individual needs and adjust it as your goals and body composition change.

Yes, in some circumstances. Whether you can gain muscle while losing fat depends on factors such as your starting body composition, training experience, calorie intake, protein intake, recovery, hormones, and resistance-training program. That is why the scale alone can be misleading. Someone may be losing body fat while preserving or gaining lean mass without seeing a dramatic change in total body weight. We focus on body composition and function, not simply making the number on the scale lower.

For most people, both have an important role. Resistance training helps build or preserve muscle, strength, bone health, and physical function. Aerobic exercise supports cardiovascular fitness, metabolic health, endurance, and overall health. The right balance depends on your goals, health, fitness level, schedule, and ability to recover. The objective is not to maximize every type of exercise at once, but to build a program that produces the adaptations you actually need.

Not necessarily. Supplements are most useful when they address an identified deficiency, dietary gap, specific medical need, or evidence-supported goal. When laboratory testing or your clinical history suggests that something may be missing, targeted supplementation can be incorporated into the broader plan. We prefer to identify why a supplement is being used and what we expect it to accomplish rather than building large supplement regimens without a clear purpose.

We look at more than weight. Depending on your goals, progress may be assessed through body composition, strength, cardiovascular fitness, laboratory markers, energy, sleep, symptoms, recovery, and how you are functioning day to day. Those measurements give us a baseline and help show whether the plan is actually producing the intended change. Fountain’s broader model is built around measuring across systems, intervening, and then re-measuring against your own starting point rather than assuming the first plan should remain unchanged indefinitely.